This game is definitely worth it, especially since it's on sale right now.
I beat the game fairly quickly (it only lasts 13 "days"), but I replayed it about 5 times, so that's gotta say something.
-The animation is nice
-The music/sound effects are good
-It's definitely worth the $4.99 (even better if it's on sale)
-The characters are fully voiced
-It's very cute
-It's mildly educational, I definitely know more about genetics than I did when I started, and I already new a little going into it.
-The customers are very patient, you can take all day to serve one if you really want.. however, you won't get a new one unless you accept the current one.
-You can check your orders at any time (in case you forgot exactly what plant was needed) and even change which one is your "active" order.
-You can upgrade your shop with a few different improvements
-Steam trading cards, and achievements.
-It can be a little confusing at first, especially if you're not familiar with simple genetics
-The voice acting isn't the greatest (but at least it exists)
-The dialogue (I use the term loosely) gets repetative, and I definitely found myself skipping through what people were saying, and just reading the quick tool-tip about what the order was that I needed to fill.
-The tutorial doesn't explain some of the game mechanics, such as switching which order you're currently working on (a minor problem, but it did cause me a few issues)
-The competitions you can enter have the same requirements every play-through, so if you have already won it once you can just do the exact same thing next time, and you know you'll win again.
-There's no endless mode, or survival mode, or whatever you want to call it. So once the 13 days are up, you have to restart from the beginning if you want to keep playing.
All-in-all this game was well worth the money, and the flaws were very minor. If you're a fan of tycoon-style games you'll most likely get some fun out of this, though it's definitely a lot more calm than some of those types of games. It would be very nice if there was an endless mode after you've beaten it, but even playing from the beginning again is fun, especially since it's fairly quick to play through the 13 days.