Talk to the Brodak people. They have always been cooperative and professional, if you had an issue. The ARFs are far from perfect. But, considering, the price, I have always thought them a bargain. It is possible to do different things that help keep the covering down. Fuel proofing all the seams helps. Some folks have used dope to do this. Some have used trim seal. One person I know puts a coat of urethane two part clear on the entire plane. He paints cars professionally. Easy enough from him. If (or when) the fuel seeps in using spot cleaner to leach out the fuel, three or four applications, then using balsa-loc will keep it down pretty well. ARCs are a good option. Possible to look everything over and fix this and that. Covering with your choice eliminates one of the variables. Cheap ARFS have allowed many of us to fly stunt with much better planes then we could build ourselves. I think, all in all, they are excellent transitional and knock around birds. As skills improve, kit building and scratch building, will be a step up in quality.