Yeah, the Dayton is fine for what it is... actually great for the price but the GZ at 350/400 is starting to knock on the doors of some really nice DSP's especially if you are willing to buy used off these forums.
Yeah, and in GZ's defense, if you are going to try a make a budget DSP, the Dayton is a great one to copy, but be realistic on the price... I bet if GZ had released this at/around $200 we would accept their claims for "upgraded" and be happy and it would have sold like the Dayton so we would have more reviews.