Hello there
For whatever reason I decided it was a clever decision to start watching Air Gear thinking it was somewhat a classic. Sadly I was very wrong.
First of all what I noted was the animation was incredibly poor. This is the same year that anime like Code Geass and Death Note, which are 2 very known anime that isn't outdated at all in the animation art. However, Air Gear did not manage to solve the riddle of how to make an anime look well. Already from ep 1 it seemed like they saved money where they could in "lack" of animation, and just blurry pictures instead. This was just one of many problems with the anime. Secondly the characters that were focused on were poor-designed. For instance we have this pink-haired girl who seems very important the first 3 episodes. Then we don't see her then next 15 until she shows up again later on around ending where she is just an observer talking to other observers of the anime...
Enjoyment and story can be taken in one, as I couldn't enjoy a none-existent story that didn't have a flow. It was literally impossible to figure out, what the anime was trying to do, how AT was even considered a sport and many other problems a long with the storyline, that made it impossible to enjoy the "short" 25 episode series.
Now you're probably wondering why I gave this a '2'? - The music track for this anime is absolutely awesome. Go to YouTube and google Air Gear Ost and just listen to the beautiful soundtrack, and save yourself the travesty of watching this anime. Just know that the music is awesome and that's all there is to it.