Well, here is an update.
I've just removed the 64GB SDD and put the original 16GB back in.
The 'old style' 64GB drive was just too slow.
Here are examples. I could not install DirectX 9.0C so that I could play a game requiring it... the download process always, always timed out, no matter if I was using the A/B/G card or an ethernet cable. Startup took about 5 minutes to get to the point where I could click the 'start' button and get any response at all. Ehenever I went to deinstall software, the "working" screen would just sit there for at least twominutes before starting to work the drive for removal.
So, yeah, the advertising for the 64GB drive from where I bought was, essentially, false. This drive takes ten times as long to do anything that you could do on the original drive. It may be faster on FAT32, and I will report on that eventually.
When I get up the energy, I will reformat the drive using FAT32 partitions... I'm thinking 8GB for the OS, 16GB for World of Warcraft, and then two 15GB partitions for other applications and data files.
This was a thoroughly depressing experience, not to mention being out $170-$180 for the card and shipping. There is NO WAY that I will buy the "faster" 64GB card until I've heard from people on this forum with their experiences installing to it and then using it for applications.