Ditto, Bruce. I've got that HF gun too, and use it only for staples, but also have their 18g brad nailer (nails only). But my new pride & joy is the Ryobi 18v (battery) Brad Nailer and haven't used an air brad nailer since. But back to the OP.
For under 20 bucks, David, try the HF versions as mentioned. You can buy 2, so if something does go wrong, you'll have a backup. If this is for shop use, I would seriously consider the RYOBI for $129. At that price, there's no battery or charger (additional $49 - but you may already have other Ryobi tools, such as a drill/driver, circ saw, blower, jig saw, multi tool, etc., in which case the additional bat/charger purchase is moot). Read the reviews. BTW, buying the HF nailer for backup is a good option regardless which brad nailer you choose. Good luck!