I understood the limb system in Surge 1 and 2. It was incredibly easy to learn and I really enjoyed it. Want to go for a quick kill? Go for exposed limbs/head. Want a chance to get new weapons/armor? Go for the appropriate armored limb/head. But everything else was kind of bland. I found the enemies and locations be lacking in variety and the stories were just not interesting to me. Surge 1 also had a lot of lousy bosses. Surge 2's bosses were slightly better.
For me, the best Souls-likes that I've played have been Immortal Unchained and Mortal Shell, followed by Nioh 1 (Nioh 2 was too hard for me).