This anime is not boring, but I wouldn't watch it again. The anime is very slow, has a bad story, and has terrible characters >:[. Other than that, the show is pretty gory and sexual.
While some animes employ filler episodes to lengthen their series, this anime goes out of the box to employ filler scenes. THAT'S RIGHT GUYS, barely anything happens in each episode, so shotgunning this anime is the only way to remain sane. It's funny because I would enjoy predicting when filler scenes occur and then get really frustrated.
Storywise, the story is a disappointment. This anime can be summed up as a battle anime, where characters are just pit against random monsters. The main conflict (getting out of that hell hole) is completely ruined by the end, it is so anti-climactic. It also begs the question why? Why did I spend 26 episodes watching a story of this guy? Why couldn't it have been any other guy? I hate having this feeling.
The characters in the anime are nerve-racking, especially in the beginning. They would pull a raki from claymore and just stand there when they needed to act. Unlike raki, these people take a whole fu**ing season to finally get their shit together. Fortunately, justice was served around episode 20 at least >:) Thank you.
VIOLENCE AND SEX:
The violence is gory to the point where I would sometimes feel bad for the person getting destroyed. I wouldn't recommend it to anyone who can't handle bodies blowing up, limbs breaking, and excessive bleeding. I liked it.
There is sex in 2 episodes. Other than that, there are a lot of boob scenes throughout the show. It's funny how the camera is always checking each girl out and generally centers on their boobs. Clearly, this show is made for the male viewer, but I was not impressed as a fellow guy. the sex scenes and fantasies are largely there to waste my time. Clearly, if I want to get aroused, I can look up porn or hentai on the internet. It's not hard at all! At least they give "tips" on how to get women to have sex with you, lol :).
This anime has major faults, but I kept looking the other way. It was because I saw potential in this anime. I realized how wrong I was in the credits. I would only recommend this anime as a filler anime, for someone who has nothing good to watch.