I updated last night and what I am seeing is that the phone is responding faster than it did with the first leaked update. Everything is stable and am having no issues with any of the Apps. or phone functions.
I am wondering if this update opened up more of the second core, thus the phone is faster and quicker responding to commands. I am not a high tech guy, so certainly don't understand all of that, but it would seem to make sense. Speaking of Sense, I think 3.6 is just fine... no complaints from me. I know some are complaining that we didn't get 4.0 so its time to move to the One S... but for me that is a complete waste of money. I have a feeling that if you put the Amaze and One S side-by-side you would have very little, if any, performance difference.
Knowing that T-Mobile is upgrading the network throughout 2012 - 2013 and newer phones will be coming out to handle the higher network speeds, it was recommended to me by T-Mobile that I hold on to my Amaze for the remainder of 2012. And, go with one of the newer phones that will be capable of handling the higher speeds in late 2012, early 2013. Personally, I think that is very good advise.
Just as an aside, I spoke with the guy that manages my local T-Mobile company store. I have been going to that same store for 7 + years and know all the salespeople there very well. They keep me on the straight and narrow in regards to my phones. All of them said that even with the One S they all feel that the Amaze is still the highest level phone they sell.