I have put a dozen flights on my Revolver so far and most things have worked out o.k. The wing tube was quite stiff initially but it's good now - if it is hard to seat in the wings try some graphite powder first.
The wheel pants showed some minor cracking so I added some glass cloth in the areas of high stress. The cowl screws backed out in the first few flights so I put some PVA / yellow glue on the threads and they have stayed in place ever since.
Apart from those minor issues the plane is a joy to fly. The DLE 20 provides plenty of power and the airframe is very stable. It knife edges with a little coupling but that was easy to mix out. I can't wait to get the motor fully run in and then I will really punch some holes in the sky.
I love it.