I have two of the new Fullfields. I used to have a Diamondback and feel like the Fullfield has better eye box (comparing my memory of a similar Diamondback, the 2-7x35, with the new Fullfield 2-8x35).
The only caution I have about the new Fullfields is that they are relatively short (physical length) for their magnification range, at least for my experience which is with more traditional style but modern hunting scopes like Bushnells and Leupolds of the past 15 years. The fields are more likely to need a rail given the short mounting space. Since most newer rifles have rails that's ok. Anyway if you're not using a rail be sure to check the required mounting space. The Burris website gives the dimensions.