Expectations are low for a 200w heater to be honest. I was more concerned about safety, well-built, quiet (no snap/crackle/pop like oil filled heaters), can be touched without danger, lightweight, cool on the backside so safe to hang on a wall. It is all of the above so is a very nice execution of a flat-panel 200w radiant heater. Longevity is yet to be tested though. I also wanted a radiant heater as opposed to a convection heater, so this fit the bill perfectly for me.EDIT: it is not completely silent, the thermostat switch inside makes a chirping noise like a cricket when it cycles, a nice feature that it can't get too hot, but it ended up being useless to me as a nighttime heater as I am very sensitive to noise.I have messed around with low wattage heaters before so I knew what to expect. I have two 350w wall-plug heaters in my home office and they can increase the temp maybe 3-5 degrees in there, enough I don't have to heat the rest of the house as much.I use it to heat a small enclosed space (smaller than a closet), with an inkbird thermostat to control it, it does that well.As far as other uses it's hard to imagine what 200w alone is good for really. Put four or more of them on the walls in a small bedroom and I think you would do ok to heat that room, but there are simpler solutions for that. Chicken coop heater is about right.A last bit of information: the switch is inline with the power cord and has a high and low setting, so no electronics and therefore works well with external thermostats and timers.