I have 4 for sale. Each 800 bugs. They ran for about 6 months non stop. None makes any strange noises or had any issues. Running well and the casings have not a single scratch, look like new.
Plug and play... they are ready to use, no assembly required.
They might still have warrenty... didnt check to be honest. If they have a year warrenty as normal, they still have on. But as said, had no issue with those inliners.
I sell because i swap to TD 500 silent inliners.