Excessive Chainsuck: Don't know about "excessive", I've had chainsuck on it, and when it happened it was bad enough to ruin the chainlink and leave a fair gouge in the frame, however this was as much my fault as the frame's, look after your drivetrain and don't buy p1sh chainrings (TA inner and middle in this instance) and you should be fine.
The dead ride feel i couldn't comment on. I run mine with soft fat tyres, as such the feel of the tyres probably masks any give in the frame. The stays are definitely fatter than other steel frames so I imagine they are stiffer. I also run a Ti post which helps with the 'give'.
The paint job on mine (frame only, from about three years ago) has been pretty damn robust. Admittedly I haven't given it a clean in months, so its permanently scruffy.