Since I bought my first belt with automatic buckle a few years ago, I do not wear other more. Finally a belt that always fits regardless of the distance of any holes which also expand u. U. ugly and independent of the thickness of the trouser fabric. The buckle can be opened without problems remove (some force is already required) and also attach easily and securely back after shortening to shorten the belt. Again, some force is necessary so that the buckle anchored back in leather. The type of locking mechanism I know of other automatic belts and had no problems with it. The buckle works smoothly.
I wear this belt every day and would buy it again.