They have not failed us a single time and being disabled, I toss them down onto concrete daily as I am unable to bend to place them back onto the ground gently.  Never any leak, never any problem. Just ordered our third so now EVERY hose we have, has its own nozzle and no more hassle to switch when I change hoses. LOVE these. I can gently spray a fine mist onto my wife's delicate plants, or knock a squirrel off the top of our fence when it is eyeballing the wife's garden:-)