Sharing the experience of using the CCR as BRAS

Greetings colleagues.

At once I want apologize for my english.
I propose to share the experience (positive or not) of using CCR as BRAS. You can answer the questions below. And also can add your observations, which can share.

  1. What model of CCR are you using?
  2. What type of termination sessions are you using (PPPoE, PPTP, L2TP)?
  3. What is the Maximum number of active sessions was reached?
  4. What is the maximum throughput is achieved?
  5. What type of queue are you using?
  6. Would you say that the BRAS is stable? If yes what version of RouterOS are you using for this?
  7. Any other observations and comments that you can share.

Thanks in advance. I think many people will be interested in your experience in this matter.