This is my first climbing shoe. I have been in these for more than 3 months. I have no complaints.
As with most leather shoes, they do stretch (I feel that mine have gone up a full size). Getting a proper fit can be tricky. The build quality is amazing, the rubber works well, and they look/feel awesome. For me, they are the perfect shoe. But that does not mean that they will work for everybody.
If you are concerned about being limited by this shoe, dont be. Yes, the mythos is an old design and there are better rubber options out there. But if you have to ask, youre probably not talented enough to climb out of these shoes. I dont pretend to be, you shouldnt either.