First and most importantly, the reported issues with the endings cutting off the last few episodes has been sorted, so you can all rest assured that you can enjoy your anime safe in the knowledge taht it won't cut out on you.
The show itself was made by the same people as gurren lagann, and came up with it in the pub one night for a laugh. The end result is a beautiful blending of animation, humour, music and ridiculous action sequences.
The characters are all VERY different, makin for great viewing, the voice acting is perfect, and you'll find yourself loving the characters in this anime before the first episode is even over.
The show's plot, while originally non existant becomes more and more important, and actually holds together well, making for a genuinely exciting last few episodes, whic I was not expecting at all.
Basically, this is the Marmite of anime, you'll love it, or you'll hate it. If you love foul language and bodily fluids, then this is the anime for you!