I had posted on another thread about some issues with my early 2011 15" Macbook Pro being sluggish. (I have fixed those issues by doing a clean install of Lion) But in that thread one person recommended replacing my internal drive with a Seagate Momentus XT 500GB Internal Serial ATA Solid State Hybrid. I have been looking into it and have read a lot of issues related to it, and decided to get something else, but then when I read the reviews of other drives, they all seem to have problems. And the other drives all get just about the same reviews. So I am back to considering the Seagate Momentus XT. Anyone who has this drive. What is your experience with it. May main concerns: 1) Reliability. What issues does having a Hybrid pose? 2) Noise: how noisy is it? 3) Heat. Is it considerably hotter than other 7200 RPM drives? 4) Does it actually deliver on it's speed promises? Please post and let me know your "real-life" experiences.