Hi there! Does anyone have this Linea Pelle DYLAN Satchel? I always go for a shoulder bag with one strap, but was wondering about the straps on this bag. Are they comfortable and do they both STAY on your shoulder? I seem to have a problem with two strap bags; the outer strap always wants to fall off! This have a 9.5 inch drop and says it is a "shoulder bag". Any advice on this bag would be great. Thanks! I love it!