I started feeding my gator Mazuri at about a year of age, when I first heard about it and found a source that sold small quantities. He wasn't too interested at first-he had been feeding on insects, fish, and rodents up until that point. I just threw a few pieces in there and removed them after about 10-15 min. I offered the Mazuri first and followed up with the old standby if he didn't go for it. Maybe the third time they were offered, he ate them.
Of course, I'm on board with the theory that alligators eat anything that isn't nailed down...filters, rocks, anything dead...so it wasn't really hard to convince him to eat this stuff. Is it the smell? It could be. I think it was also the fact that he has a conditioned feeding response and this is what was offered as food at feeding time.
It's easy to feed and a complete diet, but it is the messiest stuff I have ever seen! Man does it mess up the enclosure! He eats it all, but it makes for a Mazuri stool that he climbs over and disperses through the water. But I ran into someone who switched his gators from Mazuri to hot dogs for that same reason...I'll stick with the mess. 