I went straight to Win7x64 + Cb64 as soon as I could because I was hitting the 3GB sampler limit on XP using orchestral VSTi’s. I’m actually using Steinberg’s bridge rather than jBridge as I currently have few 32bit plugs that I use. Occasionally it hangs on exit, but that’s only with older projects that are loaded up with loads of old plugins, I try not to use them now. Personally I mourn my old plugins, especially some of the original Steinberg plugins which just aren’t compatible anymore, but I’ve found that most manufacturers have now updated old plugins to 64bit so as time goes on I find that I can go more and more retro 
Mike.