I second frager14. I am new to the hobby and I trained on the Avistar and my second plane is the Goldberg Tiger II so I decided to build a kit. The Sig Something Extra is a great kit and has wonderful instructions. I have thread for my build and there is several others.
Here is my thread...
http://www.rcuniverse.com/forum/m_32...tm.htm#3231236
I have never flew this plane, but I heard so many good things about this plane. I have to say it one more time - The instructions are GREAT!!!