Stayed at this site end of August 2015.  A good site to visit London.  Just catch the number 3 bus on College Road (5 min walk) which takes you right into regents Street via many of the London sites.  One bit of advice sign up for an Oyster Card before you arrive and save money by just using the bus which has a daily capped charge of £4.40 no matter how many bus journeys you make.  The site is ok, a bit dated but clean and efficient. it is on a hill but the hard standing are level. Make sure you research your route in especially if towing.  I came in from the M40 and was ok but some tight spots especially when my sat nav told me to make a turn (what you must be joking?) and watch out for cyclists who buzz in and out of lanes. I would not recommend that route to someone who is not used to traffic and tight spots. I left the site via Catford out the gate turn left then have to cross three lanes to a roundabout and do a 180 degree turn to the M20 South which was ok. Only managed to get blasted with one horn...not bad for London when towing. Speak to the wardens they have some maps printed off to help.  The Wifi could be better but I believe the BBC mast may be affecting the signal.  I would use this site again for London but would come in a different route.