This file has been on the FEX for a while without much attention, so let me take a look.
It is a pretty specialized area, where I am not an expert, so I would not rate this tool on its intended usage. (Some of the pieces are pretty generic, so the eigen.m code is something I could talk about. It was well written.)
However, I can talk about the overall tool itself, in terms of the code. Every part I looked at had excellent documentation. There were internal comments, H1 lines, all things I like to see. Where appropriate, I found matrix operations instead of loops, etc.