We just bought the same motorhome in January except ours is Minnie, not Minnie Winnie. Had about 33k miles, very good condition. Issues so far:
-service engine light came on when we were driving it home after filling up the first time
-discovered a leak in overcab bed (also on drive home in a bad rainstorm)
-black water sensors not accurate
We sealed the leak.
We've been on three trips so far. No problems with slide, furnace, engine. We're happy. We spent about 23k on ours which was a little more than it was valued, but it was in really good shape.