I'm a big fan of these shoes, but as the saying goes, they seem like a master of none. They do so many things well, but it seems like you can find a better shoe in Sportiva's line up for each function. I do, however, love how comfortable these are.
Sizing: I wear a size 40 and my feet literally won't get into a 39.5, so they're fairly snug. The wide toe box makes them comfortable enough to wear on long pitches or around boulders without having to pop them off after every couple of goes. For reference, I wear a 40 in Solutions and Kataki's (super tight) and a 40.5 in Testarossa's.
Edging: They're okay. This is probably their weakest point, but they're so sensitive that they still do a good job feeling out edges. They do roll on dead vertical. This is where I would pick the Kataki instead.
Jamming: Not a trad shoe, but still sold. The slipper jams well, but it's no TC Pro.
Smearing: I thought these did a great job of smearing, especially on slopey holds. The cut out in the foot allows them to form around slopey holds well.
Caves & Steep climbing: This is where they shine. The toe rubber and really flexible midsole allow them to hook and grab great. On a steep face, Testarossa's and Solutions do a better job due to the possibility of hard edging. In caves, these are hard to beat.
I wear these for just about everything. Hard to go wrong with these as a do-it-all shoe.