To get back to the topic . I can say that my CMP Spitfire was my second warbird I ever owned. It has outlasted many others and took a lot more abuse than any of my lighter built planes. I will agree that when you spend the money on certain ARFs you get what you pay for and they go together better with less mods and added hardware. But if you like to create something that is personal and uses a wide range of power sources , then the CMPs are a low priced alternative to the fully monokoted , lightweight but expensive ARFs.
They are not for newbies and do not fly like a UCanDo. They fly more like the scale kits which tend to weigh more and look better.
If you buy one make sure it say's CMP or GSP somewhere on the box. A few rip offs are out there.