I have had a few different ones over the years myself, have used others besides the ones that I have actually owned.
I want to know which you guys prefer. I am again in the market.
Electric? Gas? vertical engine? Horizontal? Diesel fired?
I prefer a gas engine driven one to electric partly because of the portability and partly because of the hole water near electricity thing. One chafed winding and the unit gets wet and you'll be blowing breakers at least.... maybe get zapped.
the best one I had was the one that was stolen last year along with my Troy Bilt Horse, 5 Sears Suburban decks and so much more that was in my parents' fishing cottage shed. That power washer was a Landa diesel fired steam cleaner. Relatively low pressure but the hot water/steam made up for that and I rarely needed any degreaser besides the hot water.
I am in the market again, I would like another steamer but not sure I want to lay down that much money.
The vertical shaft gas powered box store ones are garbage, they do not last.