Not for me. I haven't had any lag, microstuttering, etc. like in Windows 7 and the playing experience is so much better than bf3. I guess if you're having problems try it out, but if it ain't broke, don't fix it.
It actually looks like that is a server side problem with the reserved slot plugin, sixer and I figured out tonight that if there is no cue to wait in there is not could not join errors and if you are not on the reserved slot list you will not get the error either. I tried joining ten consecutive times over the course of maybe a half hour and was error'd every time, booted two players from the server and got right in. Sixer got right in by removing himself from the reserved slot list. Blaze is a fucking disaster and it's messing up a ton of shit. Hopefully at some point they decide to fix it.