Is anyone using RTC for Test Case Management to keep track of approvals,execution history and defects

Currently we are working on a POC to switch from RQM to RTC for our test case management. We currently use RQM for approvals and execution history. We think RTC would be a better repository because there is basically no learning curve since we now are using a complete team approach for testing. Currently, just the verification engineers use RQM and we don't think it is an effective use of time to train others in the use of RQM. Also, since the team is already using RTC we feel it will be more efficient.

I am wondering if you know of any other teams that are using RTC for Test Case Management. It would be great to get some feedback from them.