Pros: Except for lesser capacity, this drive is better than the earlier 750 GB WD7500BKPX model because this model has double the cache and, according to the spec sheets, has a lower audible (noise) level. This model has a single platter instead of two platters, which makes this run less warm and IMO is more reliable. Compared to the similar seagate model, this WD has 5 yr warranty instead of 3 yr warrenty and might be better built. My drive was made in Malaysia, not made in China (I've experienced great reliability with Malaysian-built electronics like those from Yamaha, Panasonic, etc, that work trouble-free for many years - they cost a little more but worth it).

Cons: Costs more per GB than other HDD drives. I wish it was available in larger size, but then it'd be multi-platter which is something I wish to avoid in a main/boot drive for a laptop (tho it might be acceptable to have multiple platter for data drives because those are used less - I have some).

Overall Review: This drive can fit into a 9 mm HDD bay if you have either a 7mm caddy or the original 9.5mm caddy. At least for thinkpads.