I enjoyed Diablo 1&2, loved Fallout 1&2, and Divinity seems to be a strange mix placing somewhere in the middle between them, with some crudeness of Dink Smallwood added on top of all that, just for fun.
I feel that realtime combat was a bad decision here, and it is far from being fluent and enjoyable, when comparing it to D2. Storyline, world interaction depth and quest system are satisfactory, but still lack in the field of solving a problem in more than one way. System is kind of a mess, so to keep the game challenging and get the most fun out of it I'd advise to create a jack-of-all trades character.
Divinity can however be praised for music, humour, graphics and overall oldschool feeling. For some reason I really enjoyed playing it despite all its flaws, and I'd recommend it for anyone who wants a game that doesn't require much commitment while still having that 'oldschool RPG' feel to it. Also, game stability was for me outstanding, while compared to usual trouble older games cause, especially with a lot of alt-tabbing.
The endgame, though, feels rushed by developers and is plainly boring, so I just put remaining skillpoints in scorpions, which are absolutely game-breaking (I heard they were severely nerfed, but in the game version you get at GoG, 5 of them just kill all the end bosses in about 5 seconds, and clear normal enemies before a fireball has even the chance to reach them).