So I thought about getting one of these, and I handled one in a store for a while. I found the pry-bar felt too flimsy, and I didn't like how it opens like a "V" from the middle, instead of like an "L" from one end. I think it would okay if you detach it from a keychain, or if you only have one or two other items on a keychain, but not okay if on a full keychain like mine. I did like the "package opener" end.
Instead, I bought the NexTool TaoTool S, which has exactly the same "package opener" type end, but opens up like an "L" so it's usable while still attached to my keychain. It doesn't have the pry bar or bottle opener of the Nextool TaoBar though, although it does have a locking blade.
Also, note that unlike say the package opener on the Gerber Dime, neither has a sharp, pointy tip for piercing blister packs. It works great on envelopes, tape, and even cardboard, without danger to your fingers or the contents of the package, but there has to be an opening to get the tip into. And tape residue doesn't stick to the blade, which is great.