Air Master doesn't really have a plot. You just follow somedays in the life of the main character. If you are looking for a plot of any kind, this isn't the anime for you.
The anime has a very old feeling. It reminded me of ranma 1/2 and some older animes.
The music is the best part for me.
The characters are entertaining enough. If you aren't easily ofended I don't think they will get on your nerves. The fights are cool, but they aren't as well constructed as in others animes. Don't take me worng, there're definetly some cringe moments. The anime isn't afraid of breaking bones and spilling blood. All episodes are action focused. Some laugh out loud moments are present as well. All in all, it's a very light hearted anime that you can watch when there is nothing else to do.