Definitely try them on if you can or order them from a place that does free returns.
I order a pair of last year's Kaijus and they fit my feet very well (and I have wider than normal feet). The thing I'm most excited about is the perceived heel hold. I hope that lasts through the season.
By all accounts on this forum, they are a great boot if they fit your feet. I wear a 9.5 gym shoe and the 9 Kaijus were perfect for me, with my toes just barely touching the toe of the boot.