Good gadget but .... Initially it is not waterproof, it is spill proof, it does not have straps to close, meaning it can take water normally! The charging time did not satisfy me much, 2 hours+ for 1 battery, the card reader has USB 2 protocol and transfers at a maximum speed of 20mb/s. I do not regret buying it because it is useful to have it in the backpack connected to a power bank, but in the company's advertisements it was presented much better.

Update 1 month later: The batteries that come with it, I don't know why, but many times the GoPro does not recognize them well and they do crazy things, from 100% they drop to 70%, other times they do not charge completely when they are on the camera and they stay at 97% and the camera tries to charge them for days. But overall, they are good in terms of performance. The downside of the whole package is the charging time. It takes at least 2 hours whether it is 1 or 3 batteries in the device.
Given that the charging time is very low and the built-in card reader is excessively slow to use, I don't know in the end if it was worth its money. If I knew it beforehand, maybe I would have bought a dual charger for 10E