I have never run with a water belt or water bottle before because I did not want the bouncing up and down on my waist or the bother of a handheld. I chose to purchase the vest as a result of rave reviews from friends that own one. I love how the vest has easily adjustable straps to tighten when I drink more and more water. Also, the sternum strap with the clasp for the hose is in a great position. I also like the pockets on the front, on the vest straps, for easy access to gels/snacks while on a long run. The bladder inside is easy to fill with plastic slide top that seems to be leakproof so far! The hose also has a lock on the end of the bite side so that water doesn't leak all over when it is not in use.