It is very different from a normal belt and therefore has some advantages and disadvantages: Advantages: - Elasticity allows free movement up to the trouser limit, adapts to sitting , standing, tipping etc. - no bothersome fiddling with the belt when going to the toilet - no adjustment required when used with trousers of the same type. Difficult to adjust the length as the adjustment is not in front of you where easy to reach and the adjustment mechanism is more complicated - even if you are the same size the distance between the front belt loops may require different adjustments on different pants . - the belt buckle is not visible, best used when it is not visible because the shirt is not tucked in, not suitable for some formal purposes - extra stress on the front belt loops and fastener (button, zipper). e. etc.) will likely lead to more wear and tear than a regular belt, so it all depends on what's more important to you, pros or cons.