In reply to anonymous123:
I've been there a few times, enjoyed it.
As said, some routes are well loved, and a little polish can be found. Some crag areas have bays, with lower grade and some higher grade climbs in quite close proximity. So can be good for mixed ability groups.
There is plenty to go at, and if you want somthing with a little difference, I really enjoyed a day at sisteron, though a fair car journey from orpieere itself it does offer some really fun shell pulling in the little cave feature between the fins. There is also a really good restaurant for lunch which over looks the crag. A welcome break from the sun when hot.
Rock fax is not comprehensive for the area and some severe errors in route finding or grades can be found, either within the pages or in my translation of them. We also had a number of french guides, which were mostly good but topos were more line drawings than pictures, and even though I am good with simple line topos, at times tough to use too.
Route names and grades are on the bottoms of some routes in some sectors.
I'd say go and enjoy.