With X-3b coming out today and the posts that are coming in concerning bugs being fixed  I think I am ready to upgrade from Sonar X-2 Producer to X-3 Producer. I have a few questions before I upgrade. Does X-3 work with the following software programs without glitches and crashing? 
 
1) Komplete 9 
2) OP-X Pro-II
3) East West Symphonic Platinum Plus
4) Arturia V Collection 3
5) Memorymoon ME (CS80 Clone)
 

I can only vouch for OP-X Pro-II but that seemed fine to me. I also use Massive, Maschine and Reaktor and they've been fine, but I can't speak for all of Komplete.
Someone mentioned an issue with a certain midi generating project in Reaktor, which should be fixed now. Obviously Reaktor can get very complicated if you want it to, I don't really use the weirder parts that much.

Thanks for your reply, I use Komplete and OP-X Pro-II a lot.  With most of the problems being resolved with the b update I will most likely upgrade this weekend

I can vouch for Komplete (i'm on 8 but theres not too much difference)
 
All the parts that I use of Komplete 8 work flawlessly - Kontakt (Plus all the libs) , Absynth, Reaktor, Guitar Rig 5....