yeah, though since you take rating of the stim patch +1 in unresisted stun damage its not always a great choice. It might get you through the fight, but if you take 5+boxes of physical from overflow afterwards it might slow you down in the long run. It can get kind of dangerous as you wrack up stun from drain, slap on a stim patch wrack up more drain stun etc. It's a tough tactical decision, do you really need it to get through the fight?, will the party take more damage if you don't use one? if not its just not worth it.
That being said, I think they should have kept the limit in. If anything I would have preferred they increased the difficulties awakened had with bio-tech, the matrix etc from 4e back to its roots or even further. At least drain can no longer be first aided.