Well they didn't trim the silicone off the bottom so every seam on the bottom had about 2 inches of silicone that had extruded after clamping. It was easy enough to get a razor and cut it off. Other than that there is just a few spots where they got silicone on the glass and a few areas that they got a a little careless while applying the silicone to the seams. Although I am not happy about having to do extra work to get a brand new tank up and running there is no way I could have found a better price and it should fairly easily all clean up.