Personally prefer to use the oficial LL viewer,
i'm satisfied by viewer 3, works well and I like.
But still have a little problem...... is called Web Profile, lasts up to 5 minutes until I can see someone's profile,
can make LL this "Web Profile" optional (in oficial LL viewers)..... or more faster ?
I say this because this "Web Profile" forced me to use another viewer (now i use Firestorm)
Note : im not a specialist, im a simple Second Life user.
Thanke You.