There is a lot to like in the 8.5 beta, real roaming, DAOS,etc.
But keep your eye on 8.02 (coming soon). The performance improvements in this release are stunning (as documented by Ed). It looks like the Java the Hut performance of the previous client is gone and load times are now comparable to other clients on the market.
Even Microsofttologists are going to have a hard time bagging this one, and if they still want Outbreak they can have it with a new version of DAMO.
The wait is nearly over.