It seems to be faster (still slower, I think, than the old Southern Africa site, but I suppose it is VITAL in this day and age for a site to use modern graphics to their utmost potential) and I no longer get the feeling that I'm using a site that was designed with no thought for people outside of France and Germany and the british Isles.
I very much like that I can now throw all the pictures for an observation on upload at once. Of course, this doesn't mean that they will all upload, because internet. Again, qualified by the "It would be nice if I could do something other than stare at the screen while they're uploading, like the old SA site", but it does encourage me to get up and walk while at the computer, which has to be good for my health (although it is usually to the refrigerator, so...).
I also very much like the fact that I remain logged on.