Pros: 1. effects are very nice, groundbreaking stuff. 2. think of 3D as multiplying the above point by 100. 3. setting seems very real, maybe more so than the reality we live in.

Cons: 1. how many times have you seen this plot being made into a movie? 2. stereotypes are everywhere. 3. ditto with clichés. 4. ending was too predictable. 5. script could have been tossed together by anyone that has watched a few movies. 6. pure entertainment & eye candy, no brain required.

if you still don't get what i'm getting at, think of it this way:

think of a poker movie. poor dude with little or no experience playing live. casino 'war' happens. he trains. a tournament pops up with the antagonist playing in it. they both get to final table. last hand. he is behind in chips, but ends up winning anyways.

bottom line: you owe it to yourself to watch it in imax or blu-ray. here's an idea, watch district 9 right after this.