I have a slightly wider foot and found the high fives great. After having them molded the first time, I went skiing and experienced some discomfort, quite strong pain on both feet. I then had them re-molded and now the boot fits perfectly, no issues whatsoever.
The flex is great for both park and powder. They are very easy to buckle up, put on and take off.
The liners are very comfortable and keep warm, when all your friends are complaining about cold toes.
I would personally recommend these boots to anyone with wider feet, such as my self.