So to write a bit more about the whole game, first of all if you have played Metro before, you'll still feel like you're playing Metro game, even tho world is open you got a feeling of a metro game, there are a lot of interesting areas to explore.
If it comes to areas, you have 3 areas which are pretty classic themed for post-apo games, but to be honest, it had this metro and soviet vibe. I really enjoyed the fact that almost every object in game is from real world soviet-era things, from those typical cups, ending on boxes (eastern european people will know what I mean).
Plot is not kinda different than in Metro 2035 but still has it's logic and is not ultra-dumb, but it's not some Witcher 3 for sure.
Also gunplay and gun feel are great, fact that you can adjust every weapon you have or that you can craft some items is made really fucking well. Personally I hate crafting systems in almost every game but here, it's really balanced you just collect 2 things aside from weapons and ammo, chemicals and steel (I guess) and you can craft some basic shit from it, like first aids or filters. It's not annoying, which is great.
For me (it's really subjective opinion as I'm great fan of universum since 2010) game is 9/10.