Tried the Butora Mantra "tight fit" and they were just too narrow. The wide fit is perfect! My street shoe size is 10. I went a half size up for a snug more aggressive fit with a 10.5. A full size up would be perfect for a longer day. Honestly, I couldn't imagine getting my street shoe size or smaller.... would be way too tight for a shoe like this. If the half size up feels snug, keep the laces loose for a few pitches on their first day out. Then tighten up as you go. Tighten the laces up for the crimpy face climbs.
I don't have a wide foot but my my feet seem pretty flat. I have worn normal TC-Pros, Muira, Tenaya Ra and Masai, and never felt I needed a wide version of those shoes. Unless you have a foot that is very narrow, I would get the wide version of the Mantra! The wide version seems more like what I would say is a normal version for normal feet.
I climb Trad multipitch almost exclusively at Red Rock, Las Vegas NV. I used to put my feet through hell wearing shoes that were too tight, hurt my feet in cracks, or weren't stiff enough. Now I have a shoe that is comfortable, stands on dime edges, feels great in cracks, and climbs everything I need it to. Oh yeah, the rubber on these shoes is sticky and seems very comparable to fiveten c4 rubber.
Climbed Epinephrine in Red Rock with these shoes. Epinephrine has a wide variety of climbing to offer... cracks, face climbing and 400+ feet of awesome chimneys. These shoes made for an awesome day on a classic climb. I hope they never stop making these shoes!
If you want a the protection of a mid-top shoe by butora, check out the altura. Not available on backcountry yet... was told it would be soon. I prefer the regular fit altura over the wide and wouldn't go bigger than your street shoe size.