You might get used to the look or it might be that it's a look you don't like on you, whether or not it's "okay."
I've learned I just don't do well in 3-inchers--I teeter and somehow lose "myself". But if that height is good for you, then you will be trying to think, is this the one.
Could you go to a major user-friendly shoe store with a large inventory--like a DSW--and try on a number of other high-ish wedges to get an idea of whether it's likely this would be the same in other brands (even though they may not have all of the other features) ? Then if the shoe really fills a hole in your capsule plans, you'd know more about whether arch-gapping is as likely in any other shoe as well, vs. whether you like a non-gappy look better.