@ChevChelios The Samsung Drive management software is called Magician and once you enable RAPID, you will be required to reboot to finish the process. No need to do anything else because Magician will autorun itself automatically every time you boot. There are other things in there you can tweak that are generally well known SSD enhancements, as well as run a performance benchmark to compare to before RAPID is enabled. It will show you crazy fast numbers because you are basically benching your RAM at that point.
I running an 850 PRO on this machine I type from and I don't use RAPID because I don't trust it. If you don't have a good UPS system in place you run the risk of loosing important data should you have a power failure. Besides, its fast enough on its own.
I have 1TB 850 EVO, PRO, 1TB & 500GB Crucial MX200, BX200 and Sandisk Extreme PROs in 480 and 960GB models. Also have the Sandisk Ultra II's and those, along with the Crucial BX200, I can't recommend because of the TLC factor/slowness.
The MX200 is a good buy for an above average drive right now and I just picked one up for the wife since they're on sale on the egg. I just checked the 1TB MX200 and they list at $289 compared to the $279 I just paid, and the 500TB is $150, which is a great price IMHO.
The 850 EVO is good in my laptop an probably a little faster than the MX200 but your mileage may vary depending on chipset and if you RAID. RAPID would also be safer on a laptop because of its built in battery.
For speed, I think the 850 PRO is really on par with the Extreme PRO, or vice-versa. With the former you get built in encryption, which I recommend for laptops, and the latter you get a much cheaper price. You can pick up an Extreme Pro 960GB for $348 on the egg right now, which is a steal in my book for what you are getting. Get em while they're hot, folks!