Definitely the best version of headphones if you're switching from wired to wireless. The big pluses are the battery life and the design. On the downside, for some people it can fall out of their ear. Then I immediately recommend trying the PRO version they are vacuum and fit better on the ear. The disadvantages, like all Apple products I want to mention the cost artificially created by the presence of the brand, in the market there are many alternatives, but if you're a fan of technology Apple, you should definitely look at this model.
I also want to say in advance that it would be a big mistake to carry a charging case without an additional holder
If anyone is interested, they are much larger than the 3 version and also lose in the reserve of energy for uninterrupted operation without recharging and sound quality, while the price difference is not more than two times (you should look at the region of purchase).
I have the entire collection of headphones of all generations, it is easier to show the visual differences, so it is clear which headphones, what sizes.