I don't have an opinion on that tool but I picked up an Ingersol DA that is light as a feather and takes very little air. It wasn't a lot of money. I think less than $200. With air tools, the better quality, the less air they seem to take.
Also, I have two shops. One has a great compressor that puts out plenty of air that can keep up with the DA without working full duty. My other shop just had a little portable contractor style compressor that couldn't keep up so I picked up a second cheapo compressor and connected them together. It works pretty well but not as well as a good quality two stage industrial compressor.
When you paint, you're going to need a lot of air anyway. I found a single contractor style compressor wasn't up to the task of painting. It's too much a pain in the ass to watch the pressure gauge and wait for it to recover while you're trying to worry about painting. With two compressors, I can just paint and not worry about it.