I like it....there are a lot of nice long runs....make sure you have access to the trains going along the wall on the long straight section.
Are you going to use a Lionel trestle set? If you do, make sure your clearances takes into account the newer larger trains.....for example some of Lionel's MPC era cars don't clear the 4 3/4" clearance without scraping.
Have fun.
Peter