If you liked the Original show, you don't need a review or me to tell you to watch this. On the other hand, this can be enjoyed even without having seen the other show first. But if you have, you will recognize characters you were familiar with and it will make more sense overall I reckon. Plus you'll have the advantage of knowing what the show tries to achieve and how it feels.
Again a lot of blood and action and some minor nudity too - so not for kids a not for those who are expecting something more or rather less adult themed. The animation might be slightly better than the original was, that is for you to compare. It is however exceptional once again. Also this is not just "sweet" but also short (in episodes)!