As a Mac user, I often find that I hook into Windows drives very frequently at work. Having NTFS compatibility is really important for sneaker-net-ing files, and otherwise making life easier for me. It is a shame that this sort of thing isn’t built into OS X, but the Tuxera drivers help a lot!
So for folks who work in a Mac/Win mixed environment, you can get 20% off the normal price. I received this offer in a newsletter email campaign, and I have had a great experience so far! The offer lasts until midnight on Wednesday, June 12th. Happy interoperability!