I think it's a great kit, having built several. It is more like building a rigged ship in it's complexity, but as long as you take your time, it comes out very, very well. There is going to be a build up on MM sometime soon, I would also heavily recommend picking up Squadron's " Schnellboot in Action", there is a ton of data in it.
The kit depicts the early version of the S-Boat, and certainly looks a little clunkier than the sleek S-100 series, but is full of more gadgetry and fine parts, making for a neat model in the end.
greg
http://www.ewaldbros.com