Decent product, but initial problem with charging.
One of the batteries worked and the other didn't. I was ready to return the product, but putting it back in the charger and leaving it there for a lot longer eventually demonstrated that it wasn't a dud.
But wow, a simple note about charging times would have been useful! I think the batteries may need extra charging time the very first charge. That was the lesson learned.
Performance is good. No complaints after several weeks use. These are keepers.
One other note: There is no manufacturer or warranty information inside the product and with these 'shipped by Amazon' products there doesn't seem to be a direct way of communicating directly with the seller, so its just as well everything is working fine now.