We purchased a NTU 2007 Roo 232 this spring after having had a PUP for 10 to 12 years. It is similar, though not exactly like the 23b. Ours has been great! Read the Rockwood Roo threads carefully so you know what issues are common with these rigs and how to identify them. One of the biggest issues is water seepage on the bunk ends. Check the bottom of the bunks, both interior and exterior, specifically the hinge area, to see if it has water damage that weakens that wood and laminate. If there is no damage, you're looking at a well maintained camper. There are modifications to help minimize any further water damage, but you need to start with a solid bunk. There are people on this forum with a TON more experience with these matters than I have, hopefully they will chime in here. We absolutely love our Roo 232!