Murdoc,
The Butterfly is a fun build. There are a couple steps that were questionable, but that could just be me. All my wood was of very good quality. I have only built 3 other models befor this one, and they all were small scale Guillows kits. Everything matched up to the plans exactly. The only thing that I dont like is the landing gear. I will probably change the landing gear to the aluminum type that bolt on from the bottom.
I say go for it and buy one, I will probably get another one and add lights to fly at dusk and try a .20 or .25 on it.
What is the price at your lhs? I bought mine at tower hobby for 69.00