The Lenovo has a perfect calculating machine. Fast start under Win7. Super quiet. High working speed. Even extensive search in my comprehensive than 250,000 recordings images database (on a separate Western Digital cloud storage, connected via USB 3.0) go mad much faster than with my old dual-core computers. All graphics work programs (Corel Draw, Photoshop, CAD) work wieselflink and calculate complex structures in short periods of time. That reminds me of the screen was too small and I hate to tap around on the flat keyboard of the notebook, I have the old keyboard and the old screen used. Conclusion: Perfect for fast work. In my opinion, the only drawback: only three USB ports, so immediately a fast USB hub should be purchased with.