For a first watch, it is very good for people without much experience like me. It is a simple watch, not difficult to learn, and it is very quick for any adjustment underwater

To avoid the problems that will surely arise, buy the watch and the USB device for connecting to the PC together. Then install the drivers and software and use the application to perform a firmware update. It's very simple.
Well before its time was up, mine started taking initiatives on its own, such as changing the time and entering dive mode on land by itself. After a few months, it completely froze. With the firmware update, everything was fixed. Its construction seems quite good. The functions for free diving are very good and it even notifies you when to drink water. Unfortunately, I haven't found a way to prevent the diving mode from activating automatically, which reduces the battery life.
Edit 29.08.2021 Despite the firmware update, the problems have returned.

Very good watch, with a large and readable screen. I bought it in June and 4 months later (October) it suddenly started turning off on its own. I changed the battery, but the restarts continued. I took it to the store where I bought it, who sent it to the service center as it was still under warranty. The store immediately sent the watch for repair, but almost 2 months later I am still waiting for news from the service center.