Summary: I upgraded from an X61 (non tablet). The X201 is a lot faster. I got the model with the fastest chip, harddrive (7200) and extra memory. I'm happy with how fast it runs on Win7. Booting is fine. Unless you're plugged in (unlikely for a tablet) you need the large battery (about 4 hrs life). Then, you have a full 5 lb tablet, which is too heavy to be a good tablet. The pen accuracy is very bad - see other reviews.