I am keeping it because it was cheap and there are surprisingly few battery organizers available. But this is the barely adequate. It should have more AA and AAA spaces, and half of the D and C spaces. Or more all all. The biggest problem is that the spaces for the AAs are too tight for rechargeable AAs. Rechargeable AAs tend to be every so slightly larger than alkaline AAs so this is not a great choice if you use rechargeables [I personally think alkaline AAs and AAAs should be be illegal, because they are old tech that needs to die, and stop polluting the environement. Plus, why would you buy a battery you can only use once? Really?] Some company needs to step up and offer something good in this category so that using rechargeables is less of a hassle.Oh, and the battery tester does not work. Not worth the bother to return it.