Alot of people hate on this weapon, but I've never understood why. It's a pretty decent choice for alot of PUPs out there, and personally what I use most of the time.
I've never really had any complaints on my H2H damage. I don't see why anyone should go an extra 500k in the hole for Hades, which is mostly just a slight and situational improvement over these.
All in all a solid choice, don't be afraid to use it.
On its own, the HP boost is lackluster, but it shines when you combine it with other % boosts like on the Auto-Repair kits. It really comes down to your play-style, or just the situation at hand. Do you want the extra HP from this for pet tanking, or do you want the extra enmity from the Hades for pup tanking?