3 of 5 Stars
Upgradable weapons and armor
Improved engine (sun rays look pretty spectacular)
Less bugs than the original
More emphasis on tactics
Some fun nostalgia from visiting familiar places
Didn't feel different enough from Shadows of Chernobyl
Need to do quests in order, so you have to reactivate ones you've completed once you've done the "first in chain" to actually complete them
Disappointing as compared to SoC.
Finding upgrades can be a real pain
Feel free to skip this one and pick up Pripyat instead unless you are a die-hard Stalker fan. It's not bad, it's just that it really doesn't feel like you are getting anything different than Shadows of Chernobyl.
There is jumping.