I have her little brother 150 I sometimes seemed a bit too small. So I bought the model 250 but these proportions do not suit me: it is longer than the 150, logic, a bit wider, perfect, but its great height does not seem practical to me to store and quickly access the hardware ( in fact it is necessary to store the material on "two-story" and therefore obliged to remove the object from the first floor to access it from below). If not finished very well, very solid, the Lowepro!