It's visually better, richer in content and more comprehensive in terms of gameplay compared to its predecessor. It will definitely make you spend time with it until the arrival of MK XI.

Mortal Kombat X is ridiculous amount of fun, maintaining the core of what’s made the franchise successful while evolving enough to stay relevant.

Mortal Kombat X is furthering the story that was presented in Mortal Kombat 9. New characters, graphics and combat system is changing everything you know about Mortal Kombat universe. It's one of the best fighting games we have seen so far.

It’s still the same fun and crazy fighting that demands from the player exactly as much as he wants to give. You can gather your friends and simply mash buttons to enjoy bloody spectacle, or you can spend hours perfecting your techniques to compete with professional players. No matter how you choose to play it, MKX will find something to offer. [June 2015, p.64]

MKX will last you for a long time. A few variations of the usual Arcade Mode, some dumb mini-games, online multiplayer, a lengthy story campaign, and, finally, Krypt… Not all changes to gameplay mechanics are obvious, but they do make the game more dynamic.

Excellent fighting mechanics and an incongruously good story hampered by serious performance issues. [June 2015, p.56]

Not a komplete katastrophe, but you should employ kaution when deciding if Mortal Kombat X is right for you on PC. It's a great game, but one that's krippled by bugs.