Commercial CHEF CHM990W 900 Watt Countertop Microwave Oven - 0.9 Cu.Ft Compact White Microwave for Small Kitchen, Office, Dorm Room - Fast Heating & Defrosting with 10 Power Levels

This is going to be more than most people want to know -- but I've been using microwaves in this size/price/power class for 20 years and might be able to help a few people who are newer.1. This 'Westinghouse' is a good example and works very well. Amazon price and delivery are first rate.2. NO microwave in this ~$100 price class is made by the company that has its name on the front. Essentially 100% are either made in one Chinese factory or by Samsung in South Korea. The labeled manufacturer tells the real maker what specs (power, controls, etc.) he wants and they make it, package it to say 'Westinghouse' or whatever, and ship it to the USA. There is a 'Rival' model that is identical to this one except for details of the controls and the Westinghouse comes in white which the Rival didn't. That's why I bought this one -- wanted an exact replacement but in white.The 'works' within a power range and maker may be identical -- my two are. Fit, finish, screws, paint type, turntable -- it's ALL the same. The actual POWER may vary somewhat. The Rival was closer to 1100W while this one is a real 900W -- needs a bit more cooking time than given for 1100W machines.3. Since the price/power range pretty well sets the construction, you should look for features you want and the control panel details show the biggest variation: Size of numbers, number of specific food buttons, does it have a +30 second full power button (Rival did, WH does not), color of numbers, etc. Latest models all have a child safety lock -- if set requires specific keystrokes to make the thing go at the start. Color choices also vary. One label may have what you want in -- say -- red, while another will only offer black. Etc.4. Weaknesses/things to be aware of are similarly alike. In this price range they're all baked enamel ('good paint') inside, which means that if you aren't very careful about cleaning/keeping it dry the life will be about 3 years before it rusts badly under the turntable. For long life use a plastic cover over an open plate, open the door promptly when done and LEAVE it open until next use, remove the turntable and dry underneath each night. Damp paper towel if necessary to remove any spilled food as food acids will take paint off pretty quickly. A nailpolish mark on one of the dents in the turntable underside makes it a cinch to put it back each time.So far as I know, porcelain enamel (melted on glass) finishes are only on high end (and much larger) microwaves. They'll take a lot more moisture. If you leave the door open, the lightbulb will burn out in a couple-three years but it helps keep the insides dry.Other than that READ THE DIRECTIONS. There are any number of long-life cautions there that aren't labeled as such. The Westinghouse manual is excellent and only in English.6. EVERYTHING that fails on these machines is pretty easy to fix and all the parts are out there if you are cheap like me and want to keep a good machine in service as long as possible rather than just throwing it away every three years. The window over the microwave passage (silver-grey thing upper right inside of oven looking at front) is available -- if it catches fire, replace it, cut to size (boxcutter knife) from a kit. The light bulb can be replaced but requires removing the cover over the high voltage internals: Don't do that if you aren't familiar with LETHAL voltage precautions. The turntable motor can be replaced rather easily -- never had one go. The magnetron lasts for years: I have replaced one and it failed because of a factory defect. Ditto the fan. Maggy and fan are also in the killer HV area.It's good to remove and wipe down the magnetron window every few months. Use a paper towel dampened with water and wipe firmly to remove food vapor deposits as they're what catches fire but when that fire burns out it will likely have ruined the window. After wiping, LET DRY for several hours before using.You can even repaint the insides. Search 'microwave cavity paint' and read/follow the directions carefully. DO NOT use that paint indoors -- it's highly flammable and nasty to breath. Remove the microwave window and plug the hole with crumpled paper towel, just lift out the drive hub for the turntable. Let it dry a couple of days before bringing in/using.7. It's possible to hang these under a cabinet and there used to be many models with the kit of parts to do it. Now, NONE. I think the lawyers killed that setup because IF YOU ARE STUPID and start a serious fire in the oven and it's right against wood you may have a kitchen fire. So if you're given to pouring your McD's coffee on your ... you know ... or washing your gloves in gasoline and trying to dry them in the microwave, DO NOT EVEN TRY a hung installation. Otherwise cut bars (aluminum bar stock is good) to go inside the cabinet top and distribute the 30# load over the whole front-to-back distance, drill/tap holes for about 12-32 machine screws AND HANG WITH SPACERS AT LEAST !" long using a scheme that allows free air circulation over the top of the machine. Ideal spacing for the bars is about 15-1/2" L to R and centered; that's what the original kits did and the insides of this model are identical. CHECK CLEARANCES INSIDE to wiring and terminals.NEVER use a microwave for anything that might have a flammable solvent in it. Food or water washed items ONLY.NO MICROWAVE should be 'turn on and leave the house for a few hours.' In 20 years we've never even had a scary event but I don't trust heating appliances at this power level with so many variables and while the machine IS well protected internally -- there's an over-temp shutoff, the top and upper surfaces are two layers all metal, etc. -- extra safety precautions are still appropriate.