I have lived in the area for 8 years, 4 without a child and 4 with and this park is a brilliant place to pass the time, whether with my daughter or having a beer with friends in the summer.
If you have kids then this is a great hidden place for a pack lunch and a play and if you don't have kids it's a nice detour off the hustle that is Leith Walk, London Road and Easter Road.
It's definitely best visited in the Spring/Summer
A nano cache.
Congratulations to Firth of Forth on being FTF!