It's a free power. If it had the normal tractor beam cooldown, it would effectively be a free ensign science slot. Which would be a little rich.
As is, it's a tractor beam that can be used very soon after Real Tractor Beam. Or a free long cooldown tractor beam if you didn't have the slots for Real Tractor Beam.
I would think the sacrifice of having to use the regen shields would be enough to warrant a shorter cool down. I enjoy having them, but it's like trying to protect my ship with paper! I can understand having a longer cooldown if it were a set 3 or set 2 ability, but just the fact that one has to use ALL of the set in order to unlock it and thusly sacrificing stronger builds should make the cooldown a bit shorter.
Gonna be honest, one of the reasons I disagree with you is I keep hearing "You should be hit by two to four times more tractor beams in arenas, that sounds reasonable"
I wouldn't say the shields are that bad, either. They're not MACOs, but not much is. ^_^
They're not much worse than a normal tractor beam... But I could be wrong...
I suppose someone could (and would I guess) use the normal tractor beam then cycle with the assimilated one, so you have a point. I guess that fact ruins it for those of us who don't, I was excited to get the ATB but quite sad to find that I can only really use it once or twice an encounter.
No the shields aren't bad, but they are nowhere near as good as some other things I could have, so I am taking them at a loss to survivability in order to get this ATB.
Eah, I'll continue to use it, but I hope one day they'll reduce the recharge time...