I for sure would buy the eaton compressor. I strongly believe the two stage is better for body work and painting. I have the same two stage compressor but with the 80 gal tank. The motor on the eaton compressors are huge compared the the big box store compessors. For the home hobbiest you'll never wear out the eaton, just change the oil every once in a while. The eaton compressor is much quietier than the sears it replaced. You will never regret going bigger, while you may regret the smaller one later. Just my .02.