Bedford is fine, having been there in my caterham on numerous occasions and on a corporate track day where you drive many cars inc caterhams, 911, and formula palmer audi.
Been on number of events with RMA, inc ring and spa - very much a club which suits some but not others I find. Indeed rather captured by a day at silverstone once some time back when Graham Clarke was proud to announce he had done a deal with McLaren and they would provide FOC bacon rolls for breakfast so that they could use the track exclusively in the afternoon - but we could stay to watch!
Personally I would look elsewhere first but not so that if they were the only people doing the ring I would go.
I am considering doing spa with circuit days in April (if space available) in my 911 although never done a track day with them but went to stelvio pass and Lambo factory tour with them - nice bunch of guys. Dont think they do the ring
Hope this helps