I have a 30WR. I like the floor plan of the WR vs the WRS with the slide. With a slide you loose the tv platform, pantry and dynette. The dynette is replaced with a couch and portable table. The TV is relocated where viewing is not optimal if someone is cooking in the kitchen. The WRS has a little bigger bathroom.
I have not had any realy problems with mine. I would recommend that you shop around for your best deal on a new one. We drove to Iowa to get our fist work and play a 28BR and then we drove to Texas to get the 30WR. On the west coast the WR was going for around 35k at the time. I got the one in TX for 12k less than that. Worth the drive and made a road trip out of it.
What size are you looking for?