No personal experience with these shoes, just lots of others.

The fit feels good in the store. That's a good sign. But the real test will be after 3 hours on the trail, maybe after a long descent which will tell you if the toe box is right.

There is also a slight chance that any new shoe could result in knee pain because it lets your foot pronate/supinate differently than what you had. This problem will usually surface only after several miles/hours.

Some fit problems can be solved with creative lacing.

Sounds like you got a good deal. Hope they work out and keep us posted.