I've talked to C4 several times and it always seemed like a risky bet for someone my size. There is an uncomfortably large initial order and annual requirements and they always made a point to attempt to impress me how large and aggressive they are and will become. My read is they would have no hesitation to trample me if their Big Picture suggested that this was to their advantage. The Extra Vegetables debacle tended to confirm my suspicions.

Based on the feedback that I've seen here, assuming you are the size company that they want, C4 is worth a look.

RTI Apex shows promise, but I wish that it was farther along. Now, it is possible to have one central cable page that all of the rooms use. This is a huge improvement.