I was keen for my DC to go there but didn't get in, so took a place at it's other sister school, which I was assured provided the same level of education. I was very unhappy with it and took my child out at the end of yr2. But, I have lots of friends who are very happy indeed with RPPS. Just don't let them slide you over to their other, less established site if you don't make the cut for the heavily over-subscribed RPPS.
A word of warning, the fees have been going up very rapidly, over and above the rate of inflation (for both schools, as they are the same fees, same uniform etc both sites.) The owners of the schools are looking for a site for a senior school and the belief amongst many parents is that they are being heavily topped up on everything imaginable financially, as the schools company is lining its coffers in readiness for the costs of opening a new school.
One of my concerns before leaving was that if they are opening a senior school they will want to ensure that all the students, especially the brightest stay with them and therefore, would I trust them to prepare them well enough for external exams to other top schools. My feeling was not.
Just things to look out for and ask about.