Stapleford is actually in Essex but close to London, Ongar is the nearby town which isn't too lively..
Regarding the Diamond the only downfall Ive found is that I can't do the entire IR skills test in it, apparently the partial panel part of the test has to be done in the Senaca due to the turn slip/ball indicator not being available in the glass cockpit. This maybe able to be done in the Senaca sim..still waiting for feed back from them....