Before you go to Ari Ben, make sure that the maintenance issue really is being resolved. I went there for some time building and ended up leaving half way through because of it. I flew on 4 different airplanes and not one had a properly working fuel gauge. Did a 4.2 hour xc and gauge read full. Looked in the tank and it was almost empty. Complained to chief pilot and response was "Technically gauges only have to read full or empty." My response was that I wasn't about to find out if it could read empty and I walked out. They did give me my money back though. Finding a large block time was tough too because of the amount of flying that they were doing.