Hi Grumple,
I just recently bought a new 220 volt compressor and did a huge amount of research before buying mine. Depending on what you are using your compressor for (I'm using mine for a blast cabinet) will play a huge roll in what machine to buy. After getting mine and getting it set up, I'm really glad that I bought a machine with unloaders on it. Unloaders make it to where the intake valves open when the machine gets close to shut off point so that the motor stays running which puts much less wear on the starter because it isn't kicking the motor on and off. Make sure it has a magnetic starter on it. 220 volts on just a pneumatic on/off switch is very taxing on the switch and will burn them out quickly. Auto tank drain is nice. If you are using it in your garage like most of us here, noise level is hugely important. Get a machine that runs around 600 or so RPM and you will have a quiet machine. My compressor has a 10 HP pump that is slowed down to about 600 RPM and is running on a 7.5 HP motor. Sweet unit.
Quiet, pumps up an 80 gal tank in 4 min & 15 sec flat. I'm not a sales person for this outfit but here is the compressor that I bought and I couldn't be happier.
7.5 HP, Single Phase, 80-Gallon Vertical Air Compressor
Do your research and decide what machine is right for you. If I had to give you my best advice.....buy BIG when it comes to a compressor. The one listed above will run two guns in my double blast cabinet and kick into the unloader mode. They sell smaller units also. I found that feature for feature they were hard to beat on the price. Oh, I wired an hours meter on it right away and I only have about 27 hrs of use so far so I don't know how well they stand up but so far so good and they are AMERICAN MADE
Regards
Rich