For the very young (less than a week), you'd probably want smaller holes... otherwise they might climb in, get stuck, panic, and die. I imagine you'd also have to occasionally shake the thing to move the feed along it's length.
For the first week, I just offer food in a small shallow dish. They don't go through enough at that point to worry much about the waste, and I'm monitoring them often so I can refill as needed.
If you can get one, a vertical nipple waterer is a great alternative to the typical jar-with-trough style waterers. They'll kick food and waste into those and that starts to stink. Just to be specific... vertical nipples are good for any age, but horizontal nipples are for older ones (horizontal ones are spring loaded, and require more pressure to release the water than a baby chick can muster).