It's a pretty decent kit considering there weren't any Scuds around to measure when they made the kit. Today we can complain about the accuracy problems because we have a few of them in museums to examine. Personally I think it looks great. The cabin interiors are my only complaint.
Others have mentioned the eduard photoetch sets. Be warned- there are 4 detail sets out there from Eduard! There are 2 old sets, one for the interior and one for the exterior. They're recently released updated and improved versions of the same two sets. The old ones were just a guess. The new sets look great!
I'd say grab the kit and give it a try. It looks like a Scud to me!