It is surprisingly well animated. I dropped Naruto early 2012 because the animation and progress was sloppy. Zo, I'm pretty critical towards animes nowadays but Nanatsu no Taizai is definitely a looker.
Yea, the animation is good aswell as the fighting scenes, and they also got good powers, so yea you should, season 2 is coming soon, if you wanna wait for it, or just read the manga, its your choice