The first thing that caught my eye was the difficulties with promotions and bonuses. They offer various bonuses, which is great, of course, but it was not so easy to understand the conditions for receiving and using them. Several times I faced the fact that I expected one thing, but in the end it turned out to be quite different. Their bonus system lacks transparency and clarity.
The second point is the quality of the mobile application. I used their application on my smartphone, and a couple of times I encountered technical failures. The app suddenly closed, or the bets did not work properly. In general, it is functional and convenient, but these technical issues can spoil the overall impression.
But what is really good about 1win is the wide selection of bets and high odds. For sports betting fans, this will definitely be a big plus. If they also improved their bonuses and stability of the mobile app, it would be great.