I got mine today, and it feels really heavy when compared to the SIXAXIS. I only played for about 2 hours (of Uncharted) and there was no decrease in battery. In terms of gameplay, it helps, although you can tell that the rumble has been added in as an after thought, although still well implemented. It is worth the extra £10 that it costs to get it instead of a SIXAXIS, but not worth replacing your controlers over in my opinion







