It's pretty great. It's not flawless, but it basically fixes everything that annoyed me about XIII. I just hope SE releases a hard mode DLC sometime in the future. Game is really easy, but the gameplay is mad fun. Except during one or arguably two parts, which just suck.
For the record, I did like XIII as well, probably a 7-8/10 game imo. XII is trash though.
Edit: Might not be 100% clear, so I'll reiterate: I'd give XIII a 7-8/10 and XIII-2 a 9/10
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