Don't eliminate your local fire station out of hand for a possible fill source. Mine will fill my 97cf tank to 4500 after they inspected it to be sure it was safe and I'm sure many would do so as well. Several people have used the YH compressor to fill large tanks and seem to be quite happy doing so.
Joe to answer your original question. I have had mine since the end of May last year. Its been working well since then. I don't consider my self a heavy air user though. I have changed the oil in it 3 times so far using chemlube synthetic compressor oil. I had been using it to fill my gun directly. At Christmas I picked up a Benjamin tank. I like having the tank. It takes about 8 minutes to refill the tank. The tank allows me to shoot for several hours without having to come back in the house to fill my rifle constantly. So far its been a good experience.
Awesome... better than I hoped for.