This is a real nice kit though have not completed the sweeper car. Its not overbearing or too large and fits a small MOW yards nicely. Corners appears solid and do not allow light in, however needed to caulk where MOW track enters underneath door to stop light leakage. When using Kato or raised track bed, and where the MOW shed track meets the spur track, a height adjustment may be necessary. I added an 1/8 bed underneath the entire structure to compensate and looks fine. This is the 3rd Osborne kit built. They are reasonably priced and decent quality. Pre-sales info is a little lacking and product marketing needs more photos. I love this MOW Shed look so much, may finish bed separately to enable use of the MOW shed elsewhere.