SIG Kits are great. The 4*'s are highly re3commended. The Something Extra is also a really good kit and may actually be a tad easier to build as the wing construction is simpler and does not need to be joined. There are a ton of build threads on the SSE as well as the 4*. The Goldberg Tiger 2/60 are also in the same class as the 4* in terms of build and quality. All are great flyers and you wouldn't be disappointed with any of them.