The product works as advertised, although it does feel a little cheap and the little packs won't sit on the charging station on it's own but its easily worked around if you just secure it in the right spot with a hair tie so its not a huge issue but something to be noted. It's saved me a lot of hassle with switching out batteries and lasts for long gaming sessions without issue. Would buy again!
This is a good device, the (2) batteries you get last long. The way to insert them can be a little dodgy but just be slow and careful when you insert them. Keep in mind unless you have 2 controllers you're unable to charge both batteries as they 'slot' in with the controller when you charge them. A way to get around this is using a 50/20 cent piece for the battery to hinge on top of.
Arrived before expected date and no damage to product or packaging. The product is great for its intended purpose, battery life that will last your usual daily gaming session, led indicators to display charging state (charging and fully charged) and easy to use as you just slide it into place and it charges via the gold contacts.