Reviews - dongiboy2000

The advantages of Unity are:
+You can build for nearly all major plattforms
+Easy to learn
+Great assets pipeline, which supports most 3D packages
+Great and helpful community and hundreds of useful tutorials
+Good documentation
+A big fund as backbone. So this engine will be further developed and getting better
+one of the most optimized mobile engines

So why I give only 7 out of 10?

Well, Unity has unfortunately some really weak points:

-Basic version is free. But if you serious about game development, you will neet to purchase at least the $1500 pro license. Add $1500 for iPhone pro license and a additional $1500 for Android pro license as well. To be fair there are also a cheaper iphone and android licenses. But the crucial features are not included. In my humble opinion, this is pretty pricey for an indie developer on tight budget. The xbox and ps3 license is pretty pricey as well. I know it. But the price is not disclosed.

-no source code by default. That need to be purchased extra and is really expensive.
-dated terrain editor.
-no HDR or gamma correction at the moment.
-weak cloth simulation and no real softbodies.
-no RNM lightmaps at the moment.
-still DX9
-primitive real time shadow maps.
-no fluid physics
-old school tree editor
- No linux support. They are thousands of Linux users who request Linux support on UT's feedback site. There are over 8000 votes for this feature which is ranked #1. But Unity did not even consider it yet. They are too busy to implement promotionally effective features like water shader, and DOF to let it look like UDK or Cry.

Unity is a Jack of all trades, master of none IMO.
If you want to develop for mobile devices and have $4500 lying around, go for it. Otherwise look for some alternatives such as UDK, C4, Cry, BGE