has anyone used Powerflow/Longlife round the Kent/Surrey way? I used Powerflow in Bromley a few years back the guy was rude as hell but it was loud and I loved it - although my tastes have changed these days

Saw that there is a Powerflow in Redhill and a Longlife in Carshalton can anyone recommend either or anyother as after loads of searching google it the powerflow/longlife debate seems to really depend on who does it and all of the posts are a few years old.
thanks,
Dan