Nice approach! Gives a nice idea on how things work in a hospital. Maybe a bit over the edge but ok...
The different settings are nice and there are some unexpected situations you'll deal with. Allthough the number of tools is limited and the focus is on different kinds of GUILT (apart from one bone fracture, wich is too bad, should have been more of those...) the game does give you the routine of treating several things. The way you act fast and accurate without thinking a lot wich tools to use etc. after playing all the chapters is impressive.
So, if you're into some scalpels and draining... rent the game. And when you like the first operations buy it. The game is a bit short though, 7 chapters. But it sure is different.