I must have been very lucky or one of the very early ones. I had no problem with the download and the activation worked, too (after a couple of failed connections).

Anyway, in my opinion so far it will be worth your time to wait. This is a really great update. There are so many small changes and additions that one constantly finds a new great tweak. For example, the small preview for the materials can now be set to a defined size (1m, 100m, 1km, and so on). That means no more guessing as to what scale you need for a particular material. Another nice feature is if you double click one of the texture maps in the link tab, it will open in an external viewer/editor. You can resize texture maps during import or later on for each texture. You can also revert to the original... Sorry for babbling, I am just blown away by some of these additions, because they really fit well in my work-flow.

Ciao
TD