Considering my unanswered request regarding Bit Defender Total Security 2011,
http://forum.bitdefender.com/index.php?showtopic=28211
some days ago I decided to upgrade to 2012 version.
A few thoughts:
A ) The first time I run the installer without uninstalling v2011, expecting, as written, that my licence key would have been remembered. It happened that only my mail was remembered. Small bug and so acceptable. It took only 20 seconds to search the email with the code...
B ) I use "Soluto" to manage boot apps and optimize my boot time. With Total Security 2011 I had a boot time of about 1:40 - 1:50 minutes. After uninstalling Total security 2011, with no AV I had a boot time of 1:15, comprehensible thinking that all AVs suites, couple of seconds more or less, behave in the same way. But after installing Total Security 2012 the boot time increased to... tada ... over 3 minutes.
I thought "all right... probably it's because this is the first boot" but nothing changed. I also used the uninstall tool and made a new clean install process: as a result I obtained a little improvement making the boot time decrease to 2:30 but it is not acceptable at all that system processes that without AV were loaded in 2 seconds and with Total security 2011 were loaded in 4 or 5 seconds, with Total Security 2012 are now loaded in 16 seconds.
The slow start up affects principally system processes, as shown in the image below (don't consider the svchost of 65 seconds, it happens only when there have been windows updates, like this time. Usually is 40 seconds less).

Uploaded with ImageShack.us
C ) The problem that I've reported for Total Security 2011 in the topic linked above still persists.
D ) Internet download speeds remain normal but, surfing the web, occasionally and randomly browsers freeze for 3 or 4 seconds: seen a couple of times for chrome and opera. Never seen with TS 2011.
Anyhow it seems slower loading all the pages.
E ) The system is slower than before.
F ) As already reported by someone else, there are char visualization problems.
Therefore: are you sure that this is a stable version? It seems like a beta (being generous)...
When will be released a stable one?
Hoping for an answer...
ps: Seven Home Premium 32 bit on SAMSUNG - R580 JS01IT