The interface is really user friendly. There's plenty of features and new ones being released frequently. Also, the API integration is quite easy.

The UI is very intuative, The examples for isparitions is large and the styles are mixed and intresting

After looking and trying many AI Image generator, Leonardo.AI is by far the best, with the best quality. Also the pricing is very moderate. They are also improving like almost day by day, adding more nice features. It is also very easy to use. I use it almost daily.