IBM laptops are thought of so highly because they are of very high build quality. I've gone through 2 sony laptops, 1 fujitsu which was alright but was fairly old, 2 dell laptops and this is my first IBM laptop. This IBM laptop out performed all the other laptops I've EVER had. It's a wonderful machine with very good battery life [on 1 battery I can get up to 6 hours while on my sony with 2 full sized batteries, I could only get 3 hours with maximum power savings (typing,web browsing on wifi)but if I wanted to watch a movie, the sony only got a measly 1:20 with both batteries full charged]. The dell laptops are still not much better then the sony and the dell's build quality is quite poor for a laptop (sony's have better build quality for the most part).