Criticize C1 CMS
Agreeing never made anyone wiser.
We try to improve on the things in C1 CMS that gets criticized and well founded criticism is an important driver in the C1 CMS development. If you run into areas where you feel C1 CMS need to do better join the discussions at CodePlex and try to find like minded or post a new thread. We are paying close attention to the feedback you provide.
If you have the developer skills required to improve on the areas you criticize bear in mind that C1 CMS is open source and have a lot of extension points for developers – you might be able to fix the thing that is annoying you! If that is the case go ahead and do it, and share your solution with the rest of us. You can also propose an open project to get more developers involved in the task.