I purchased the WGen9500c 3 weeks ago. The generator was very easy to assemble even though it weighs over 200 lbs. The quality of the wiring, mechanical and structure is impressive. The manual is very complete with a lot of detail and written to easily understand. I will use this generator with a 10 switch, transfer switch. The generator will provide 50 amps to the switch with 2 additional 20 amp circuits available.