I have read good things about the Open Road 5th wheels, but of course don't have any direct experience. The seem to be one of the respected 5th wheel manufacturers, and they seem to still be open! That is a big deal these days :)
I would suggest going to rv.net/forums and
http://www.rvnetwork.com/ (Escapees forums). They will both have some good information on this builder from people using them.
Also,
here is a forum post on RV.net from one of our members. It is very detailed with pictures of some of the things they are going through with their new 5er. Good reading.
--kev