I like the Positano sandal but the fitflop company makes no adjustment for the ball of the foot so my right foot is ok but my fused left foot is not wide enough , with a elastic or buckle at the ball of the foot strap I would give them a 5*, to wear fit flop sandals I buy the mens  a size smaller and even that was not good in the hiking sandal Fitflop just does not get the message the sandals need more adjustability.the comfort would be A+++.If you have a "normal" size , width,  foot, you will be  A- ok.