I am satisfied with this SSD, however I find it unfortunate that SanDisk does not provide optimization software with it, but that said, it's still a very good product for its price range, both in performance than reliability. But attention to the compatibility me on my Lenovo Thinkpad R400 detection problem at each startup (can be a firmware history), so jenlève 2-star becuase that on my other pc no worries.