I'm not using it but being a member of a facebook group and this was reported there. Also I asked the same question as you did and here's the reply for that: Performance is way smoother as usual.. But seeing a major improvement in Battery. I was used to geyt average (100% to 30%) during 9am to 1pm on regular usage. Now (100% to 30%) runs till 5pm without any issues. Really happy with this..
That sounds really good.