GameBanshee has reviewed Divinity: Original Sin II:

Divinity: Original Sin II Review

Introduction
Divinity is a long-running series of video games created by Belgian developer Larian Studios that began in 2002 with the original Divine Divinity. Over the years, it went through multiple changes and even switched genres a couple of times, until it finally grew its beard, so to speak, in Divinity: Original Sin. With the debut of Original Sin, the series went squarely down the turn-based RPG path, including a focus on cooperation and a high degree of freedom. And now, after a successful Kickstarter campaign and a year in Early Access, the latest chapter in the long-running series, Divinity: Original Sin II, has officially been released.

[...]

Conclusion
They said it couldn't be done. They said it was just nostalgia talking. They said we were just easily impressionable kids and/or grognards, and that was why we enjoyed those old RPGs so much. And before Divinity: Original Sin II, there was some truth to these faceless nay-saying claims. Even when I enjoyed RPGs in recent years, I always had to admit that they could never quite reach that bar set by the games that came out 15-20 years ago. But not anymore.

Original Sin II is not a perfect game, not by a long shot. But even with those imperfections, it's still a shining example of what a modern RPG should be.

Yes, there are some bugs, some quests are janky and rough around the edges, and some of the mechanics make little sense. But a classic like Arcanum: Of Steamworks and Magick Obscura has all those things, too. And you know what? None of that has stopped Arcanum from becoming one of my favorite games of all time, and as a result, I can't help but proclaim Larian Studios' Divinity: Original Sin II one of the finest RPGs of all time, as well.

As I write this, I'm thinking of starting a new play-through, co-op perhaps, seeing what else the game has to offer, trying new things, and once again immersing myself in the magical world of Rivellon. And that, in my mind, is the mark of a great RPG.