I personally love the tension of playing Tau against something that can clean your clock in melee. Whether it's from desperately working the gun line, trying to put a dent in some kind of gue'ron'sha precursor weapon, or using high-risk high-reward tactics by getting in close with models like breachers.
Everyone says that they suck. But I love the idea of not-quite-melee Tau who have to get right up in your face, and are rewarded by being able to shred power armour with AP3 shotguns. Want a job that's even more dangerous than a fusion Crisis suit pilot's? Run towards the nine-foot monstrosity, on foot. And try to aim for the head.