Summary: Got it on a deal.. Usable space is only about 28GB (at least that what its shows up as). Installed Linux and I boot different machines. Seems to work reasonably well with heavy GNOME desktop environment. Some times it stutters though (system freezes... I was running arch linux with LXDE though on Sandisk 2.0 and never had any issues). Haven't used it for long to comment on longevity of this product.
Summary: If you use flash drives to transfer large amounts of data, this is a great choice! USB 3.0 items are a bit pricey now, but the difference is worth it. If you only use flash drives to save an occasional file, you might want to wait until the price drops.
Summary: Bought it 5/23/13. It was well rated for quick speeds on both read and write. Upon daily use that was true. Problem is it died 10 / 09 /13 just like that. No warning and not working in any other computer. 3 weeks of data lost since prior backup.