Onkyo offers a lot of features for the money, but their amplifier section is not as good as Denon and they are prone to overheating and breaking down. It is one of those 'bells and whistles' products that looks really good on paper, and for many people work very well, but at the end of the day, when you use it, if it breaks down on you, it isn't any good at all.
Kind of a gamble I always feel like with Onkyo, even though for those people who have them and they work well, they absolutely are thrilled with them.