Well, Peter helped me out, and, I now have it. To be honest, unsure what I think. For me, when I purchased 3.5, the "classic" kits were what drew me to it, since, I am not very good with drum production
The MAIN factor for me, was I could choose which ones to get, so, given my style of music, I picked the 2 packs that had the Green Day drumkit, and, the Tommy Lee kit.
After a while, I have got my head round 3, and, got into some of it, mixing them up and the like. I had one with the black kit as a base set up, and mixed in the highway kick for oomph, and, also the slate custom snare for well, more.
Even though I had 8 ex expansions (i had doubles of the original 2 i mentioned when I got a good deal on the complete set), I was "slightly" disappointed in the selection of kits on ex. I mean, some are amazing, but, I will never use them, and, the ones I used to use all the time, including "Slate Custom Snare", arent there.
The new interface is much better though, Kontakt is awful! And, those new cymbals are so much better. Am just stuck now trying to get something to work with our stuff, to the point where I was using 3.5 again last night. I will find out how, but, I cant import the wav files that came with SSD 3.5, well, I can, but, they all seem to latch on to the kick drum (was trying to add the slate custom snare haha), and, havent firgured that out yet, but I will.
My tastes are pretty simple, we have been compared to Black Stone Cherry, so, i want that kind of sound, perhaps with a bit more of Nicklebacks sound/production, and, am struggling at the moment. The new kits sound amazing, but, not "finished", and, the classics in there, arent any use for me. Minor niggle, but, overall I think its great, the cymbals and the new player are what take it over and above the previous, would just have been nice to have a better choice of which "classics", or, perhaps versions tailored to different styles of music, like "rock and metal", indie & pop" but, maybe not