Chrisbo - As "backwoodsman" pointed out the 211 is an older floor plan that has a rear door. The older 210, 212 and now the 214 have the rear entry door on the shorter units (I believe). No problems with the rubber roof so far. An older Coachman, I had, with a metal seamed roof always needed a little tar patching.
TonyTiger - Since you have a different model than mine, I can only guess what you may have under that seat. In my unit, I have the fresh water tank under the rearward facing dinette seat. My dinette is also behind the passenger seat like yours. One of the things that we had the dealer fix before we drove off his lot was the window by the dinette. We were fortunate that it was raining rather hard while we were sitting in the unit outside his dealership. We noticed a slight trickle of water running down the wall under the window. They completely removed the window, recaulked the opening and re-installed. Have not had a drop of water since. As others have mentioned, other things can cause water leaks besides rain - loose water connections. Does yours only leak when it rains? Hope you find the cause.
Gene
2002 Trail-Lite 211S w/5.7 Chevy