Several Arfs I have built:

Lanier Predator - Wing was warped, firewall fell out, wing hold down block insufficient

Sig Extra 300xs - Hinge setup no good, terrible wheels, Paint comes off plastic fairing on tail, Horribly wrinkled covering.

Hangar 9 Corsair - suspect retracts, covering trim loose at edges, weak firewall, mostly good.

World Models Mustang - one of the best, other than weak retracts that need to be bent straight all the time.

World Models Chipmunk - Very good, other than bad retracts similar to the Mustang.

Kyosho Spitfire - Excellent other than the fact that the prepainted covering is not fuel proof and the edges lift over time.

Kyosho Gee Bee Z - Also Very good, but the landing gear blocks in the wing come loose eventually, and tricky to land.

All in All, I think I've agreed to not buy any more arfs. Kits only !!!