There are two type of controls , both midi and pedal based.
The general setup is extremely easy with no additional requires.
The manual included with the midi controller provides additional information regarding the knobs , the midi response and its features.
The selection is straight forward , very easy to catch , you get a blue little screen in the center of the controller where you can control your patches.
I really like the 61 semi-weighted keys that feel very realistic and close to an acoustic piano , great sensitivity response , those 9 faders and 8 knobs help the user to get away from keyboard and mouse.
Another thing that I found quite amazing is the Direct Link Mode that automatically connects the knobs and buttons to your DAW functions.
Great design made by M-audio as well , the material seems durable and high quality.
The drum pads are well placed , the quality of the surface feels nice to the finger , the only down side is the size of the drum pads , sometimes you can hit the wrong pad if you're not careful.
Useful blue screen for controlling your work flow to achieve faster results.
My opinion about the value for the price is awesome , pretty cheap product for its quality and features , one of the best midi controllers for this price range.
Precision and quality of the sound isn't present because this is a midi controller , but the control over your DAW functions is amazingly managed.
I've tried different midi controllers , this remains one of my favorite of all time for its price and quality.
Knowing what I know , I would buy again this controller.