Summary: I've been running one of these for several months now and it has been great, very fast, no issues. Install was breeze and this outperformed my previous SATAII SSD by A LOT. Boot times are shorter, there is no lag waiting for a disk to spin-up, no noise, no heat... no complaints :) The fact you can drop one these in a laptop and get this kind of performance while improving your battery life is great.
Summary: I spent about a month researching SSDs and most reviews pointed to the Samsung 840 Pro being the best. I'll tell you that I agree. This was the simplest hard drive install I've experienced. Then add the improved speed over my Western Digital 7200 rpm drive, there is no comparison. Most reviews said that you would only notice a slight difference in boot up speed and application speed going from a standard HD to a SSD.
Summary: This is my first SSD, so I was not sure how to install it in this new computer I was building. The instructuctions were just pictures - not English text. I had a problem figuring out the software as a result and would have never done it right except I bought a second one for an old computer. The software worked right in that computer, so I finally figured out how to use it in this new computer. Bottom line I got it working and it is all good.