In general I've never liked games where "how many ways can you kill something" is central. The fact that you have levels, xp and skills does not make it an RPG; it's still an action game(yes, I'm one of the people who consider Diablo 1-2 an action game and not an RPG).

The fighting system is interesting though, and even if I usually never get hooked on action games, this fighting system is still something other RPGs can take inspiration from, as it actually works without being Oblivion style buttonsmashing.