I have used the previous 3 versions of Ubuntu on my desktop, and this is by far the best. It looks better, the "included" proprietary graphics drivers have improved, and wireless finally works with included ath5k drivers only requiring commenting out a blacklist statement rather than some convoluted solution like I usually have to go through. Flash operates on par with Windows now performance and appearance-wise. It is also faster in general with a better boot time. I keep thinking that Linux is just now finally truly ready for even the average user's home desktop. The jump from 9.04 to 9.10 was totally worth it though it only worked on the second try when doing the upgrade via the update manager.