I haven't had them for many days, but they are quite high-quality, comfortable, and they look like durable shoes. Value for money shoes, even at a higher price than the 45€ I bought them for...

I wore them for running, after having them on for two days, mainly for shopping for about 4 km. Very hard and not comfortable at all. They tired my feet. Then I wore them at the gym, on the treadmill for about 2 km and weights. Also hard on the treadmill.
I don't think they are worth more than 30 euros.

I am changing my review, it's the first time I do something like this. I wore them for the fourth time today, walking the dogs and nearby shopping, the left heel started to squeak!! That's where the air sole is supposed to be. I initially gave it three stars, I changed it to one.
In my personal opinion, DO NOT buy it, you will regret your money.