i agree. jelly bean blows, feels faster but nothing seems to work right like it did on ics. messages dont send for me or take forever when i have full service, wifi randomly turns off while looking on browser or facebook. cant say anything about battery life yet though.
I have noticed the same thing that Wi-Fi would randomly turn off, really frustrating. Also, I don't have my speed dials anymore and can't figure out how to add them back.