knives

Depends which side you're coming from. It makes a very ergonomic thumb ramp when you're gripping the knife. But the short answer is, 'if you like it, you get used to it, if you don't, you don't'.

In terms of being a draw opener, I don't think it's going to change anyone's minds about whether or not they like draw openers; you either like them or you don't, and this is no different. Out of all the wave implementations I've seen on the market this one resembles the Spyderco implementation the most; I find those quite easy to use but there are certainly folks who find the look too jarring and weird or awkward to bother with.