Definitely concerned about the laser rangefinders not working on descent. My recollection is that they were very finnicky instruments.

A lot of discussion is happening around the aspect ratio of the Noca-C landers. Part of the reason they're so tall and skinny looking is that the lander is built around two linerless composite fuel tanks. Two big tanks are more efficient than four smaller ones. The legs should definitely be wider on the next two landers.