Yeah, I agree with you about AW12-13. I still like the pieces and looks I did before though, but overall I don't think the 'experiment' (if that is indeed what it was) was a 100% successful. I can imagine that if styled differently some of the individual pieces could really shine though. But compared to those older seasons where one is simultaneously inspired by the show and collection and then impressed by the individual pieces out of that runway context, this seems to not be as great with the former.
I have not seen any of the pieces from the suspender collection myself, but I like a lot of the ideas showcased in it and in general it really stood out to me when I first started looking at his Spring collections in any detail. Not too flashy, but loads of great jackets and pants and I don't even mind the styling at all.
The fact that Yohji has also made me want to wear suspenders is great as before, the only context I had for them was that of Nigerian school teachers that are sartorially trapped in some rural/colonial mash-up from the late 50s - and while that actually sounds damn cool when I write it out like that, in practice it was the frumpy side of the population that decided to stick with it