For 98% of the PCP shooters the Shoebox F10 is all the compressor you will ever need. I have been using Shoeboxes from the original chain driven models to my newest F10. It is AMERICAN made, easy to repair, easy to use, efficient, quiet and dependable. I suggest you purchase the F10, a cheap Harbor Freight compressor, a good desiccant filter and a couple of 30 minute SCBA bottles. The key to long and successful compressor life is avoiding long run times. With the set up I describe you can fill a 30 minute bottle from 2800 PSI to 4500 psi in about 30 minutes with the F10. With 2 small bottles you will never run out of air and keep the wear and tear on your compressor to a minimum.
I also own an Atlantic 10 Compressor that I use to fill an 88 CuFt bottle about once every 3 months. It is noisy and crude compared to the ShoeBox but it does fill quickly, way overkill for what I need. I shoot about 15 to 20 thousand pellets per year.
I believe the ShoeBox was responsible for the huge growth in PCP airgun usage over the last 10 years. It is a great product!
Jim in Sacramento