I've installed this firmware about 1 month ago.
1.The blackberry hang up randomly and need to remove the battery to restart.
2.About 1 day on 5 gprs is down. You need to remove battery and restart.
3.when you dial a fixed number beside a pabx in some case you doesn't ear the tone line (other firmware phone, with the same number work!)
for italy, i don't suggest to upgrade