It very much depends on your taste in music, but Hellblade: Senua's Sacrifice OST is absolutely amazing, especially considering it's all original scores (I think). After beating the game I put the OST on repeat for several days
A lot: amazing environments and scenery, cool combat with great enemy boss designs, very immersive exploration and the actress did an awesome job throughout it. The "puzzles" bits were a little pain to beat, but everything else was top notch; story was also very cool and made me feel the burden Senua's carrying.