I don't usually write reviews so i'll keep it short.
I put this into my ps3 slim maybe a month or so ago now and so far it seems a lot quicker and quieter than the existing drive.
If you are looking to buy a new drive for your ps3 slim i woud definately recommend this!
It's quick and easy to install
All you need to do before you remove your old drive is use the backup utility on your ps3 and back everything up to some form of external media (i used my 120gig ipod classic)and then make sure you sync all of your trophies before you remove the drive (you need to sync the trophies because the back-up utility does not do this).
Once everything is backed up you need to download the latest ps3 firmware, which can be found on their website, i then created the folder PS3 then another inside that called UPDATE (case sensitive for both) and make sure the file you download goes into this update folder. I put the PS3 folder with its contents onto my backup media as well(if you have space).
All you then need to do is pop the old drive out, put the new one in (very very simple, just slots in), plug the controller into your ps3 with the cable and also plug in your backup media, then turn it on, the ps3 will look for the update file and install all the relevant software, you can then use the backup utility (or something like that) to restore your old settings and files (games etc) all thats left once that is done is to re-sync the trophies back to your ps3.
Sit back and enjoy. The whole process took a long time for me (only the backup and restoring of the backup) so i'd do it when you've got other things to get on with.
Anyway the drive works great, i've put all my games on there as well as all my music and i still have around 700 gig left!
No problems to date!
Definately recommend this if you are wanting to upgrade your ps3 drive!
I guess i wrote more than i thought, i hope someone finds this useful.
If you need a better description of the process there are plenty of guides to be found on google or youtube.