This disk reactivated my old MacBookPro late 2008. Now I have 2 computers in one, for I decided to install an OS on the SSD. I nearly don't use anymore the (same) OS on the older disk (a hybrid MomentumXT 500GB, old model) because I sense it too slow, the difference is really to big. Anyway, I can access to the files form one to another (that is why I don't need a bigger SSD at all). It is a great solution to rescue an old machine.
Now, the installing was easy, it came with the tools, screws and a quite detailed instruction with a lot of pictures for any model. I am used to unmount my computer, but for a newbie, I guess it would be really clear and easy.
Just a detail: there is a little piece, a tiny silver bracket which holds the original drive in most models and has to be transferred to the data doubler. It is absolutely imprescindible. So, don't loose it, and if you are in the special situation, like me, that somebody has taken out the optical drive out without repositioning this piece, you are screwed. I finally succeeded to replace it with an own construction (fishcan, scissors, Dremel), but it would be a great idea if OCW gives the option to get this part.
Another thing: the data cable from the hard drive goes to its fixture on the motherboard in a quite stressed angle, sometimes it seems like wanting to get loose. I had to press hard and get sure it didn't release before closing the machine.
Conclusion = Installing a SSD turns your computer again an acceptable work horse. The price of OCW is really good, and despite this the quality is excellent. And, if this would be not enough, they take care of the customer, providing the necessary tools and instructions to make it home. Also their feedback is fast and kind. All in all, I recommend the brand, the product, the service, and I will buy more stuff here :)