I use Issy regularly.
Agree with the above info (friendly and cheap considering location).
Some extra hints.
1. Info (see previous threads on electronic AIP's) :
http://www.sia.aviation-civile.gouv....D%203.LFPI.pdf
(Very good info)
2. Follow route/rules : 1500 ft (requires correct meteo), compact circuit with steep approach, agree with GPS pre-flight prep, routes are narrow and waypoints close. Also pre-check emergency fields en route.
3. Normally no 100LL in weekends
d3