I am no fan of the level 0 First Aid. It's one of the least efficient cards in the game.
With that said, I could see this upgraded version having a place in a Mark Harrigan deck, especially one that is running two copies apiece of Ever Vigilant and the upgraded Beat Cop. Ever Vigilant makes First Aid reasonably cheap, if you draw both of them, and if you're healing the Beat Cop, the action cost is easily worth it. Plus, you can solve Mark's horror problem at the same time. And in multiplayer games Mark sometimes finds himself with a little downtime, so to speak, when there aren't any monsters on the board and the rest of the group is just trying to get clues. This is a nice use of that time. It also looks a lot better if Mark has already taken some trauma, of either variety.
I wouldn't rush out and buy this first thing. I think you need to buy Ever Vigilant and Beat Cop first for this to start looking good, and I would probably grab the supremely efficient Stand Together and "I've had worse…" first, not to mention an XP weapon or two. But as a late-campaign purchase once you have the appropriate infrastructure around it, I kind of dig it.