We bought a brand new (ordered from factory) Keystone Montana - added a 5000BTU Onan generator.
Nothing but trouble, generator won't stay running, poor gas flow to unit, jacks - front and back won't go up and down, leak in bedroom, moulding falling off, keys don't work in door, underbelly falling off, spare tire falling off, refrig. door does not stay closed, stove igniter does not work, cracks in Coraian counter - told by Keystone customer service we probably made them and at that point had not used it once.
This is just a sampling of it.
They won't stand behind the warranty.
Treated very poorly by Keystone rep. on many calls to get help.
We've used it 9 times and most of them weekends.
DO NOT BUY FROM KEYSTONE. DO NOT BUY FROM KEYSTONE.
Wish we had bought from Heartland.