The U400 combines a lightweight design with discrete graphics -- something we rarely see -- but its flaky trackpad, crowded keyboard and lack of truly automated graphics switching make it tedious to use.Read Full Review
Keyboard is very nice, though not as nice as Thinkpad's; however, much better than any other form of laptop keyboards (and MPBs!).Camera has good quality for video chatting.HD is a bit slow at 5400 RPM, I'm planning to replace mine later with a 1 TB 7200 RPM HD. The touchpad is very sensitive- I'm sure people with large hands will find it a big hindrance during typing. The entire touchpad clicks, but the bottom portion also serves with respective right and left click options.Lenovo adds a bit of bloatware, but it's not anything severe as with HP, Dell, etc. My fresh Windows 7 Ultimate install wiped all that away.Boot time w/o SSD: 30-45 secondsBoot time w/ SSD: 16-20 secondsBoot time w/ SSD & Ubuntu: 9 secondsBoot time w/ SSD & Linux Arch: 6 secondsAt the moment, Lenovo offers no SSD options for the U400. These options will probably be available next year. I couldn't wait for my U400, so I bought an i5 online for about 850 USD. I almost immediately voided my warranty by installing a fresh copy of Windows 7 (Lenovo makes this easy because they partition a part of the hard drive to carry all the necessary drivers in the instance of a fresh install of windows). A week later, I decided my laptop need a faster boot, so I looked online for an affordable 128 GB SSD, then I browsed the Lenovo forums for instructions on how to take this thing apart. It is incredibly difficult to take this machine apart, and if you're not computer savy, I suggest that you wait till SSD options are available online because installing an SSD also requires partitioning of a hard drive and mirroring an OS. All in all, it took me about 12 hours to finish my modifications (I also added another 2 GB of RAM)- completely worth it for the speed in my opinion.Also, many people who took apart their U400 had problems with closing their systems back up properly (edges didn't completely align), and a lot of people ended up putting a small dent/scratch in their system in the process of pulling the back cover off- I had none of these problems, but I also took a lot of care while disassembling and I had the help of a friend.