Unless this 01b build has the 22 build tweaks, and is as fast , I'll stay with the 22 build.
22 build is faster , smoother , and has better battery life , why would I change ?
Well for one, build 22, whatever it is, is only for root users. A lot of stock users are curious about this b/c they forced last weeks' OTA, and now are (understandably) unsure what to do.