Got the demo running on my A1200...looks good and far less problems than I had with 2.4 and loading pages.
Only problem I had so far was getting it to log into Amiga.org. Last time it said I had a bad user name. I'm using the right data. Perhaps when my key arrives it will be better...
And I made it work. I'm hoping speed increases as it builds a cache but running much better and with less issues than 2.4 on my 3.1.4 A1200 w '030. The registration was quick and painless too!