No issues as of yet. The generator started up easy with the push of a button. I had a licensed electrician set everything up so that it is easy to power my entire house (minus our electric stove) in the event of a power outage.
I live in the mountains and bought this to run my house when power goes out often. Instructions need to mention adding oil at the beginning of the Inst. Book.
Difficult to find one of these in the southeast US during the very active hurricane season, but so glad I waited! Easy out of the box assembly, parts and instructions were clear, etc. It is a HEAVY machine, but feels durable and solid. Looking forward to many years of reliable use.