Does anyone use a portable electrical supply unit?

[Webslinger]

Is anyone using a portable electrical supply unit with AC-outlets? (US 110v type). and NOT a battery-powerd amp. I want something I can plug a small SS amp (MG15/RolandCube/etc) into and run for about/at-least an hour. and something I can also plug other things into (fan/light/tools/etc). Maybe something like this;

 

[Ronquest]

Whatever you do, don't get the Westinghouse iGen2200. I have 2 new ones from last year so I could do 220 if needed. Would not recommend. Both have issues out of the box and hard to start.

What tools will you be running, how much power do you need?