Great game, worth playing, but if you like strategy games, this is an EXCELLENT option for you.
It has good graphics, you can distinguish objects and it keeps the style, there is nothing missing with this point.
The sound effects and music are also cool, it combines with the game play.
The game play is the best of it, when you start playing it, it's very fun and gets much more addictive when you start advancing level from level and gaining new objects, especially if you like strategy games.
The difficulty could be easy, just right, or even a little hard depending on your experience with previous strategy games, but not to worry, everything is slow paced and it has a great flow that will keep you updated and prepared for every level that comes up.
The only flaw is that you will eventually get tired of it after playing it for an hour or two and won't want to play it for a while, it is really way more enjoyable when you have nothing else to do, when you wanna try something new or add something else to your collection, so that's why I gave it an 8.5 of general gaming experience compared to all the variety of different games you can play on PC, and that's why I didn't give it a spectacular 9.0, but if you are really considering the type of game this is and looking for a rate to that, it definitely deserves a 9.0 for being an awesome strategy game.
Remember, it's a game that you can't miss.