Dear Z,
I haven't used the Badger Whirlwind II, however, I have owned and used two similar compressors, a Badger 180-1 and a Paasche D500. These two plus the Badger Whirlwind II are oil-less diaphragm compressors.
Both successfully supplied air to a Paasche H, Passche VL, and Badger 200 airbrush. However, I must tell you that I was never satisfied with either compressor.
Both were noisy, and occasionally walked across the table. The amount of air suppled was adequate for the most part, but I found it to be marginal for some applications. My Badger 180-1 was an "on-demand" type, ie, it supplied air when you pushed the airbrush valve and shut down when the valve was closed. The Paasche D500 had to be turned on and off manually, otherwise it was always on or off.
I put a water filter and mini-regulator on both. the water filter was an in-line paasche unit that worked well. The regulator might as well have not been there for all the good it did because the working pressure was relatively low even when running full bore.
I paid market price for both of these units, having bought them from hobby shops. They both retailed for approximately $120. I would have been better served buying a piston type compressor with an attached air tank. Six years ago I bought a small, piston-type compressor with a two gallon tank from Wal Mart for $99. It lasted through five years of hobby painting, but died when I abused it by powering a brad-nailer for an extened period of time.
I've seen similar compressors for $89 recently at Wal Mart. Also at Lowe's and Home Depot. The price is competitive with the oil-less diaphragm compressors, but they are more powerful, supply more air at pressures you'll never come close to using and only turn themselves on once during an all-day painting session.
You'll still need a water trap and regulator.
Searching for the perfect air supply is a lifetime adventure, I hope this helps.
Tom