My 750 on my new machine is now very stable... yey!
In terms of file transfer, the product you refer to works quite well, but I had no success in having any ability to "see" the files for transfer due to the unique file system used. It was mentioned earlier in this thread, but it is not a windows based file system (or any other common file system), so file by file transfer could be difficult. I haven't found a way. If someone else finds a way, please post it. As I mentioned earlier in this thread, sector copying the HD also doesn't solve the problem because partition sizes remain the same, so your new "big" drive appears the same size as your old drive.