These wheels have a smooth ride and overall initial quality. However the reason I had to give them a three star rating was due to how they always seem to break.
I have been skating for 7 years now. Mostly street and vert. I have owned over four pairs of air cores but unfortunately the cores always break after a few months.
A prime example was when me and a few friends when skating Southbank in London , I was skating the stair set and upon landing my heelflip the core from my back wheel just snapped. I was left with a core attached to my bearings and the actual wheel was rolling away from me.

Overall opinion: Amazing wheels initially, break over time.
Tip. Buy two sets so you can replace the broken ones once they break or simply just don't buy them.
Now I've been skating Ricta boltz instead. Best wheels ive skated in a long time.