I just did a quick google to see what they were and I still call snakeoil, especially with I-FAAST. I already know that fragmentation doesn't have the performance degrading affects that people like Diskeeper want you to think and now with SuperFetch that affect will be even smaller. They even say that the average benefit in access times is in the 10-20% range, which if they really mean seek times then that's only 2ms if it even does anything at all.
Mostly the same thing for Intelliwrite. Smart allocation algorithms have been in use decades in unix which is why most people don't believe you have to defrag unix filesystems. And I'm sure the NTFS driver isn't the smartest one out there, but it's not that bad.
And their graph that states "And how much faster your computer operates (Higher scores are better):" just screams bullshit. They don't even attempt to explain what the vertical numbers mean.