I recently received my cobalt portable air compressor. All in all I am satisfied with one exception. What they don't tell you is that you can only set your desired inflation pressure in 10psi increments. I wanted to inflate the tire to 36psi, but you can only set your desired pressure to 30 or 40psi (in 10psi increments). I was sure I was missing something until I called their tech support and was told it only happens in 10psi increments. So if you want to inflate a tire to 36psi you need to set it at 40, watch and turn it off when it gets to 36. This is a very annoying problem that goes unmentioned.