So for starters, this is probably one of the first mechanical keyboards that I've own. I've used them before and always had an eye for one since I'm a game, but never really prioritized for one before. Then after a few membrane keyboards, I finally got fed up and decided to buy a mechanical keyboard. After a lot of searching around and trying different types of keyboards (gaming, ergonomics, and typist keyboards), I found that I like the Cherry MX Brown switch a lot more than the other types of MX switches. So I bought the Das Keyboard Model S Professional, because I've heard very good things about their products. So here's my general breakdown of this keyboard.Pros:- Cherry MX Brown Switches. Basically these switches are the halfway point between a Cherry MX Blue and a Cherry MX Red switch. The Blue switches are louder and requires a bit of force to actuate the key, whereas the Red (similar to the Black) has very little force require and has no tactile bump when depressing the keys. The Brown would be the halfway or a mix between the two types of switches because its relatively quieter than the Blue but can be uses for quick response tapping like the Red.- Looks of the keyboard is relatively simple but has very good functionality.- The feel of the keys are very solid, light but springy, and concave to fit in your fingers.- Media keys located on the F1-F12 keys, which is nice when you need it. However media keys only work if plugged in via USB and not by the PS/2 connector.- 2 USB port hub built on the side of the keyboard is a nice luxury feature to the keyboard. Good for plugging in phone, USB flash drive, etc.Cons:- Glossy finish on the keyboard becomes a big fingerprint/dust magnet. It's not a big deal if you maintain your keyboard because its relatively easy to clean, but could be a potential hassle.- Space bar located halfway between "C" key and the end of the "," (comma key). Something to get used to because most keyboards that I've own had the spacebar closer to the "X". This rearrangement was to fit the extra FN (function key) on the left side (next to Ctrl and Windows key).Overall its a very solid keyboard and I think I will enjoy typing with it for a long while. Very satisfied up to this point and happy I made this purchase.