I've had one of the Powermax 7.2 for a monh or two. Had a lot of use already and already wondering why I went for the dual battery pack as it charges quickly and has heaps in reserve.
I went for it over the bosch 10v jobbie simply for it's compact sze and the included right angle attachment. Plus the capacity on the Bosch batteries made me think I'd be constantly swapping packs and having to recharge - though that was just my suspeciion and may not be the case in general use.
Metabo item is not cheap, but a great bit of kit which I'm delighted with.
Oh the Metabo also has a torque limiter dial that I actually find I can use confidently (whilst most I've tried are hit and miss in terms of repetitive use, from mounting surface mount electrical back boxes (without cracking or stressing them), to delicate carpet trim strips etc, it reliably breaks torsion just where I set it to.