Side Note: There will be a few slight spoilers, although....honestly, you probably shouldn't watch this unlike you're a big fan of Air Gear and have read the manga.
Story: 6/10
This OVA is real a letdown for me. I was really looking forward to it (my expectations were too high perhaps), and was eager to see the epic battle between Ikki and Ringo. I understand they were given only 20 minuts to fit in all that, but the feeling that everything was being rushed through was glaring. A lot of scenes that should've had much more impact or held more emotion was lackluster. Either that, or parts were left out. The part where simca gets attacked.....seemed much more powerful in the manga. n fact, Simca getting attacked and Ikki being shown getting angry all lasted around 2 min prolly. Hell, you prolly took more time reading that in the manga. They also cut out the part where Ringo chases Ikki and comments how she is having difficulty keeping up w/ Ikki, the same person who could barely even stand on ATs in the beginning of the series. They also cut out where Ringo destroys Ikki's weights so they can fight w/ no "handicaps". I liked those scenes and i felt they were powerful for showing how far Ikki has come. They also didn't really emphasized the part where Ringo's pain intensified throughout the battle due to the Sonia Road which takes away from the idea she's doing whatever she can to get her message to reach Ikki. In summary, it felt WAAAAY too rushed and some scenes just straight out lacked emotion.
Art: 9/10
If they did anything right....it would have to be the art. Wow...it was amazing. The series' animation were pretty good, but they just took it up 10 notches w/ this OVA. The way they flew through the air or grinded on a rail/wall looked very smooth yet dynamic. The sparks that came out of their ATs really impressed me as well. I only have praise for the art. Though unfortunately, this is the only category that'll get this treatment
Sound: 7/10
Meh, I don't have much to say about this. It was alright. Though, quite frankly, I hardly noticed it within the 20 minutes. I actually liked the original soundtrack, but that's just me. It wasn't so bad that it was just distracting, but it wasn't memorable either. Just....meh.
Character: 5/10
I'll start off by saying if not most, than all the seiyuus from the first anime series have been replaced so...this might put off some fans of the anime. Also....you bastards, what did you do to the Ikki I know and love! Ikki is supposed to be this headstrong, pompous and refuse-to-bow-to-anyone kind of mofo. He seemed so watered down in this OVA. He hardly even seemed mad when Simca got attacked. Yeah, so he gave Aeons a Falcon Punch to the face, but I think most people are just itching to do that to Aeons anyways (sorry aeon fans....if he has any). The change in seiyuus was very annoying for me. I really liked the original seiyuus of the anime series! Even Ikki's seiyuu lacked the pompousity that the former had that we all know and love. Kururu's voice adaption is quite disappointing ( she's like...my favorite vs. Ringo and Simca >:] ) anyways, disappointing.......but...i don't totally hate them.....i guess
Enjoyment: 6/10
Ugh....in the end, I'm biased and liked the OVA anyways despite the glaring flaws. I guess I'm just happy that there even is a OVA and....KURURU APPEARS
