I only do ARFs (no time or enough patience to build). My biggest complaint is crappy metric hardware and the horrible grade of the metal products used. For the most part the wood used is good, there is usually enough glue everywhere except at the firewall and landing gear plate, the covering is better than what I can do, and overall construction is better than most of the kit built planes I have seen. And every new ARF from the major players seem to get better than the last.