I picked up one of these 4-5 years ago for the case I lose my main AC solar source, or I need to have 120VAC while traveling/camping. My thoughts:
- the physical size is small enough to go in the car easily
- the 2000 watt capability seems a good range for what I might need to have while traveling (camping)
- the unit from Harbour Freight does seem to work as advertised
- Do note that this inverter produces a "modified sine wave" output. That is to say that the voltage output is not a smooth sinusoidal waveform, like is provided by your local power company. It's more of a like a square wave, but with a slower/faster rise/fall time on the wave form, While I have not seen any specific "problems" related to using a modified sine wave form that prevented it's use, do note that some devices do not like the modified sine wave form on their AC input. Stuff with electric motors (an electric drill or skill saw) should be ok. Devices that use the AC input waveform as part of their function could show problems, such as a clock motor, that won't keep accurate time, or a radio that has a buzz in the speaker. My computers did seem to run ok on it.
- I will say that I have not run any heavy loads, like the washing machine noted above, with this inverter so I can't speak to that part.
I hope this helps....