Questions regarding the Samsung 840 Evo-Series SSD

Hey guys,
so i’m planning to upgrade my mid 2012 macbook pro (i5, 4GB RAM, 500 HDD) to a Samsung Evo 840 500GB SSD. Here are the questions that I have regarding it:

1. Is it compatible with the mid 2012 macbook pro, and do you recommend buying it?

2. What’s the difference between these two:
http://www.amazon.com/dp/B00E3W19MO/?tag=macforums0e4-20
and
Amazon.com: Samsung Electronics 840 EVO-Series 500GB 2.5-Inch SATA III Notebook Kit Version Internal Solid State Drive MZ-7TE500LW: Computers & Accessories

which one do you recommend?
3. If you don’t recommend the Samsung Evo 840, which SSD do you recommend?
4. If you’re a samsung evo 840 user, have you had any problems regarding the SSD in the past?

I know that most of these questions are very “nooby”, but big thanks to everyone that’ll help!

I'll give you a quick opinion: I wouldn't purchase anything Samsung, especially a SSD. Go to Other World Computing and buy a quality SSD.

We are such Samsung haters!

- Nick

And I am another. Crappy cameras turned me off Samsung forever!

I'm no fan of Samsung either, but in point of fact the 840 EVO series have been well-reviewed and are universally highly-regarded.