Pros: Everything that the manufacturer advertised about the item was true and exceeded my personal expectations. I put the drive in my 5-year old Qosmio X505 Q830 - I7 quad-core 8GB RAM. It just completed my configuration, which is using SATA II controller (before there I did a quick test install on Lenovo T430 with SATA III). On SATA III - it gave me the full achievement of the advertised speeds. On SATA II my expectation was to get the values in a half, but surprisingly, the sequential reads went way above the advertised values. I installed the 840 SSD as my primary and OS drive as replaced the existing OCZ Vertex Plus 2 SSD, which went as a secondary in a CD caddy - to serve as my data storage. I use a bunch of programming software on my machine, so fresh install wouldn't be desirable for me. Samsung's cloning app worked fine with cloning the Lenovo's HD, but gave me some issues on my Qosmio. That's why I still cloned the OCZ to 840, but using Ease US ToDo app (freeware). Then I used the Magician software to perform some adjustments and everything went very smooth and successful for me. My Qosmio works like a charm since then - quick, stable and very quiet (the fan either doesn't go on or goes on slow motion most of the time). I really like the device for what it's meant to be doing. I hope it will last long enough on my machine, but as a general precaution, I frequently clone the whole SSD on one of my older spinning hard drives with the same size, just in case.

Cons: None so far, really - nothing that I can think of.

Overall Review: In general - very cool part of any compatible laptop (or a desktop probably). I would recommend it to everyone, who can afford it. I use my laptop for programming, not gaming, so may not be a reliable source of information for those, who are focused on the extreme side of usage. What was I able to evaluate is the reliability, stability and fast system boot up - factors that I am interested in.

Pros: Looks good

Cons: The device came with a wrong drivers CD. The CD has drivers for a USB Wireless card. No manufacturer, no model# no serial number. Nothing. Windows 7 unable to find a driver for this card. Without driver this is useless.

Overall Review: If the distributor of this device responds to my review with an idea where to find driver for it, I will revise it. Until then - do not buy.

Pros: Replaced my previous 250 GB 7200 RPM Hard drive with this one on my 4-years Toshiba Cosmio X505-830. It was recognized by the BIOS with no problems at all. Created 2 partitions with 115 GB each. Installed the OS (Windows 7 Pro) and all updates smoothly on the first partition. Used the scond partition for day-to-day data storeage. Installed SQL Server 2012 and Visual Studio 2012 with all rngs and bells. Several other apps for work. My heavy laptop started booting way faster and shuts down even faster than before. Working time on battery went up with 30-50%. It looks like the laptop has a lot better oferall performance. I am very satisfied by the hard drive.

Cons: I can't see anything wrong so far. I hope it will last longer than some of the other reviews.

Overall Review: Well, initially I tried to clone my existing OS, but as other people say - brand new re-install is highly recommended. I have several other conventional HDs with good speed and capacity, so 230 GB is just about enough for my daily needs. I also kept the other HD as a ready-to-go backup. I also made a system image of the SSD, so if something goes wrong, I wouldn't loose data.