Two of my chums have Inbreds and never have a problem with either
I had 2 Inbreds, the first one was ok (it was the first model which was disc only) but paint was terrible and the finish was poor. I had to file the disc tab and dropouts to make them straight.
Then I had the limited edition 853 model. The frame design didn't promote chainsuck, but when it did happen (which it does with all drivetrains old and new) the design of the chainstay meant the chain jammed inbetween the rings and the stay.
I had a big gouge out of my chainstay but I sold the frame pretty quickly. My brothers chainstay snapped in the end, and it wasn't an isolated incident. The problem was that in the quest for loads of mud room Brant had designed the chainstay to bend out far too much at the tyre so the angle/space at the chainrings made the chain jam. My brother had a new chainstay (correctly designed and shaped with as much tyre clearance) put in by Argos cycles and hasn't had a problem since.
Brant's view on the subject was (and I quote) " hmmm I must sort that chainstay design out one day". Basically he knew it was a problem but didn't really care.
That's why I will never buy another On-One product I'm afraid.