I use it for 6 months. I never used other equipment of this type before. Mackie is the only equipment I have.
We can make several objections to this control surface. Its price, it does not work in standalone, quality of documentation.
Despite all these objections, there are very good reasons to consider it a very good product.
Regarding his new purchase price, now it is no longer manufactured, it's ancient history. In time, this equipment is very affordable. A little more expensive than other control surfaces but offering features that have no real equivalent elsewhere. Endless rotary controllers 32 each can also be used as a push button, with a customizable display on 2 lines, capable of CC, the NRPN and sysex is the great luxury. And nothing to spoil, manufacturing is treated.
It is not possible to use it alone. She needs the software controlling C4. So you need a computer in your setup. Had it been possible to dispense with the C4 control software and run it standalone, then I noticed Excellent or Good. But today, that works without a computer in its configuration? 6 months since I use it, I see the C4 control software uses very little CPU and is very stable. I had no problem until today.
This control surface and its software are provided with numerous configuration scripts that allow immediately to take control of MIDI hardware widespread. Mackie's website, you will find some documentation that explains how to create scripts or even new. Unfortunately, it is very incomplete and must therefore cling to understand the mechanics of XML configuration files. This exercise is rather reserved for those who feel the soul of a computer programmer. The ticket is expensive, but the results it gives you is worth it because the control surface and its software can do many things.
CC of NRPN and sysex, your Mackie Control C4 can do everything at once. What is very significant is the ability to display labels instead of values MIDI control. It provides an unmatched ease of use. I developed several scripts to greatly facilitate the use of products such as Evolver or Tetra, which are products that contain enormous potential but whose front panel controls are very limited.
The value for money in nine is not great, but occasionally it's a very good shot.