I have owned 5 (Ultimate .22, Verminator Extreme MK II .25, Warcat.25, Wildcat MKII .30 and Streamline .22). All were flawless out of the box and the durability were fine for hunting, which is mostly what I use mine for. Very easy to cock and most importantly-accurate. Never had to send one back for repair.
Pay no attention to a handful of dummies who abuse everything they own, and think they can drop, drill, grind, lathe and modify, and then when things go wrong want to blame the manufacturer. If they were the great engineers, machinists and modifiers they think they are, why don't they build their own airgun from scratch?