Unlike my second set 2500 batteries (also a branded) keep Eneloops also deliver what they promise.
Per set of 4, it is not a problem to make more than 150 photos with a flash - and that is no mean feat. My other battery pack has acknowledged at least after 50-70 Photos service.
The self-discharge is described as very low. Even after some several weeks without the use you have loud battery indicator still full capacity and charge the usual flash quickly.
For me a clear advantage over many other NiMH batteries. Therefore, I bought later me a 8-set and need no bottlenecks when taking longer to be feared - unless you do not invite :)
Strong buy recommendation ...