I guess with batteries it comes down to the fact that I can always pop new batteries in a toy. I can’t always pop new batteries into a partner (actually I should probably never pop batteries in a person...).
The most helpful critical review
What can I say? You work!
What can you say about batteries? They do their job. They are discreet, but one did leak and they are a little pricey. Weigh the pros and cons and decide which side is more significant to you. I do wish, however, that EF would carry a bigger pack of these guys and lower the price.