I guess there is always downsides. Curved screen is not great, and having a monster cpu in a chassi that throttles heavily is wasting money. But sure, looks otherwise like a good phone.
It wom't look as beautiful if you meed to replace it and find out that it costs about the same as buying a new phone. Personally I also find that they're worse, usability wise.
How are they "awesome" if their usability is worse. In my opinion it adds absolutely nothing and sometimes palm rejection fails so you end up with unintended inputs. There are literally no benefits.