KidSnide
Adventurer
I read it as being underpowered. It lets you craft items quickly (something players rarely do) and maximizes healing dice when the system lets you recover hit points ridiculously fast anyway. The only way it's good is if you use a lot of healing during combat.
The maximized dice while resting seems like a really big ability to me. Yeah, the system allows ridiculously fast healing overnight, but low level PCs are pretty limited during any given adventuring day. This feat dramatically increases the party's ability to endure damage from multiple encounters.
Personally, I'd like to see the benefit limited to potions and hit dice. What's awesome about this specialty is that it allows effective healing between battles without a cleric. That's a terrific feature.
The problem is that the ability to maximize in-combat healing is so great that the Healer specialty becomes something that is vastly more effective when the cleric takes it. This puts us back in the position where there is a lot of pressure for the cleric to specialize as the healer, and that's a dynamic I'd like to move away from.
-KS