I bought this yesterday. Easy to operate. I tried to call the number for a question and was never able to get a hold of anyone. I tried for 30 minutes. Had a hard time getting the registration page to show up on my computer.
Helped my neighbor get his new unit going - - - was impressed with the features and how quiet the unit is compared to the Generac RS8000E I have. I purchased a WGen7500 as well. Thought I'd pass along a tip learned from my Dad - - you can use the box for a storage dust cover. Look forward to testing this out next time the power goes out - - - assuming it works as advertised over time, I can change the review to 5 stars.