I never owned the original Bandai release due to their absurd pricing scheme so when I saw this, I just had to jump on it. Eureka Seven is one of the first anime series I ever saw, and it is with little doubt the reason why I got into other anime series.In this box set you'll get the first half of the series along with a bonus feature disc. Unfortunately, that bonus disc is just merely a DVD instead of a Blu-ray disc. It mostly includes commentaries and interviews for the voice cast, but I don't find much value in those kinds of bonuses so you won't notice a quality loss between the formats. There are no episodes on the DVD so don't worry about that either.For image quality, it's as good as you could expect from a series that aired back in 2006. It's not going to look outstandingly crisp like say, Fullmetal Alchemist: Brotherhood or Soul Eater, but it's definitely better than the broadcast quality it had back when it aired on adultswim. It is after all, only 1080i in 4x3 ratio. Nonetheless, it has the classic Bones (animation studio) look to it that I personally thoroughly enjoy.For sound quality, again, it's about as good as you could expect. Funimation did not appear to make any special effort to go beyond its original 2.0 audio for either English or Japanese. I did notice that there was an occasional popping sound in quieter scenes on my surround system, but nothing distracting or highly prevalent.All in all, if you've been on the fence about purchasing this series, then this release is probably as good as it's going to get.