So far, I can say without exception positive.
The batteries are of good quality. With regard to the capacity they come although usually not quite against the originals, but in practice this is pretty irrelevant. Much more important is that they pass through the banking problems in the respective camera and create a comprehensible discharge curve of the day, the battery indicator on the camera not "fully" indicates after three more photos but suddenly it's over. In this respect, all batteries behave as expected, just like the originals. Total failures and extraordinary self-discharges after prolonged storage (fully charged) I have not had too.
The charger charges all batteries (including the original), although not a record quickly, but gently (battery, unlike some fast loading original loaders, barely warm), which lays the foundation for a long battery life. With regard to the universality that Patona chargers are also top: When it comes down to traveling on compactness, a charger with the respective chargers as well as the preferred connection cable is sufficient (I prefer microUSB, one has mostly eh the charging cable of the mobile phone while).
The price / quality ratio is absolutely fine, especially when you look at what cost so many original batteries and chargers.
Therefore I can only express a big recommendation for Patona chargers and rechargeable batteries for my very positive experience.