So far I have not had the silent call bug, the dialer is much quicker, the overall functionality of the phone is faster, I can type, I can slide from home screens without lag, and my Mflops score actually went up to about 2.3 (stock) from 1.5 or so. I feel that there are some very bad duds that come out of production and I had one. If you are experiencing issues with yours and you have the ability to (silent call etc) ask for a phone swap, do what I did use it for 5 days see if it is better and send you old one back. Mine also came with 1.5 and the 1.47 bootloader, but I do not think I am going to root anymore, since the phone is now working as I would want it to. Just my 2c. Hope it helps someone else.