Special effects in 3D IMAX were great. I think Cameron was going for this generations Star Wars experience...something never experienced before. He got it and to appreciate it; I recommend seeing it in IMAX 3D. There has been criticism of dialog and predictability; however, Star Wars was not noted for that either. It was perfect escape movie...to a world that was amazing and visually stunning.
We took 13 year old son and 9 year old daughter who loved it.
There were a few intense scenes that I wasn't sure daughter would enjoy but she had no problem with them.