The site is very well maintained, with great facilities, we always found the staff were very friendly and helpful. It is on the flight path for Edinburgh airport but after a while you don't notice the planes going over, which at times are every few minutes.  It is easy to catch the 27 or 16 bus into town with the stop being about a 10 minute walk from the site, these run well into the night for those wishing to take advantage of Edinburghs theatres or nightlife. Although part of the walk back is unlit so a torch is essential. There is also good access to the shore with walks to Crammond recommend. In the other direction it is possible to walk to Leith if you have time (or catch the 16 bus if not) The 27 stops at the botanic gardens which is well worth a visit. We have visited on many occasions and have always found the site a good base for getting into the city.