TL;DR: I will give it 9/10. Recommended!

Pros:
- Epic graphics
- Great, synergized systems
- Language / Dialogs (The characters in the game use very realistic words including the subtitles.)
- Story rich and its ability to allow you to tailor it as you desire
- Many things are not expected to happen but it happens (kind of blurry between pro and con but I will put it here)
- Awesome Minigame! (Gwent card game)
- Arrays of mechanics to let players sink hours of their lives into
- Its jests
- If you think there are a lot of quests (including side-quests), it offers more than double of what you have thought it has
- There are some little details that I can't simply put it into words. Those small detailed works that very few developers would look into.

Cons:
- I was quite confused with the controls and movement at the very first hours of playing.
- If you are very serious about making decisions and afraid of consequences, this is not what you want.
- The language in the game (English) is quite difficult for non-natives to understand most of the dialogs entirely. (or is it just me?)
- I have found some bugs that involve around the hourse and pathing mechanics but they're minor.
- Sometimes savepoints (autosave) are too far from each other. I once died in a quest that I had been playing in for almost an hour and it brought me to the beginning of the quest. (If it is by design, I'm sorry but still ...)

To summarize, even though you see the cons are as many as the pros but I can guarantee you that all of the cons here combined are not as important as one of the pros. Therefore, I'd say that every true RPG gamer must at least play this game once in their lifetime. You will not regret it.

TL;DR: I will give it 9/10. Recommended! Pros: - Epic graphics - Great, synergized systems - Language / Dialogs (The characters in the game use very realistic words including the subtitles.) - Story rich and its ability to allow you to tailor it as you desire - Many things are not expected to happen but it happens (kind of blurry between pro and con but I will put it here) - Awesome Minigame! (Gwent card game) - Arrays of mechanics to let players sink hours of their lives into - Its jests - If you think there are a lot of quests (including side-quests), it offers more than double of what you have thought it has - There are some little details that I can't simply put it into words. Those small detailed works that very few developers would look into. Cons: - I was quite confused with the controls and movement at the very first hours of playing. - If you are very serious about making decisions and afraid of consequences, this is not what you want. - The language in the game (English) is quite difficult for non-natives to understand most of the dialogs entirely. (or is it just me?) - I have found some bugs that involve around the hourse and pathing mechanics but they're minor. - Sometimes savepoints (autosave) are too far from each other. I once died in a quest that I had been playing in for almost an hour and it brought me to the beginning of the quest. (If it is by design, I'm sorry but still ...) To summarize, even though you see the cons are as many as the pros but I can guarantee you that all of the cons here combined are not as important as one of the pros. Therefore, I'd say that every true RPG gamer must at least play this game once in their lifetime. You will not regret it.