Until recently I used the Vallejo stuff, which is fine, but a little prone to rubbing off while handling during the painting process.
For my current project, however, I'm using Badger Stynylrez which I already like better as it's definitely tougher. I've only tried airbrushing but I see no reason why it wouldn't brush on just fine. Two things to be aware of, though: a) if, like me, you prime in grey, they've chosen a shade that is exactly the same as GW plastic, so it can be tricky to see if you've missed a spot, and b) they only sell them in bottles 60ml and up, so you can't just buy a smaller bottle to see if you like it.