I have a Craftsman 6hp 150psi 33gal. I think its rated for 9.5cfm. Horizontal tank. For general home use it's fine. Anything less I would be disapointed.
Pros: Runs any tool. Tank size is adequate for most jobs. Rarely do I have to wait on it. (Sanders, grinders and air gun)
Cons: LOUD. Late nite use in a family development is not a good idea. Horizintal tank collects water and does not drain as well as vertical.
Advice: If you can afford the belt driven oiled type. You would not regret it. They are very quiet. Get a vertical tank at least 30+ gallons. That way the drain cock is at the bottom of the rounded part of the tank and water will drain easy. Don't buy a Coleman or Cambeldfield Hoffsen (sp), I've heard bad things. Check Costco, they have some good deals. Never run a compressor with an extrension cord. Extend with hoses. Buy good hoses with rubber. The other plastic types will crack in cold weather. If yours comes with a yellow coiled plasic hose, throw it out. mine blew up and shattered. Power requiremnts are usually 15amp for the typical home compressor, and it will spike to that. Mine will blow the breaker unless pretty much everything else on the circuit os off. Best to have a dedicated 20amp circuit.
Tools: Get a good impact wrench at least 500ft lbs. Oilers: Oil by hand.
It's a good idea to get a dryer to remove moisture. Water will tend to really condensate in your high CFM tools like die grinders and sanders. 1/2 drive ratchet, look for a small thumb button to actuate, big triggers can get jambed on between you hand and jeep. Ouch. Get an angle die grinder with lots of acesories, cut offs, sanders. Air hammer, you wont use it much but when you need it, it's a gem
Steve