Ultra SIM = I confirm! Good performance, precise cuts, perfect fits, good quality seams: the beautiful work ... The buttons are all accessible regardless of the position of the flap. The closed flap does not move, the closure is reliable. Little doubt about the strength in time: to use the permanently case, the part that connects the front of the case to the rear face is pierced: There is very little leather to connect the two. it is for access to headphone jack, power supplies and openings in front of the speaker. Regarding the speaker, it is partly masks = the sound is a bit muffled (nothing too serious but in a pocket or purse, that have little importance. Last: New, the case does not fold down perfectly behind the phone, it's just a little ... I guess has the use leather av relax, and in view of what remains as leather ( the joint is where there is the access openings to the lower terminals), the leather will soften rapidly.