Yup, Sphere Grid is good. There characters start unique, but they all end the same if you are a power leveler. I like that. XD However, I don't really to see Sphere Grid again. It was too expensive =o FFVI also had the "start unique, end the same", but in FFX, they only become the same after you finish the sphere grid. In FFVI, all the charatcers are the same as long as you have Espers.

But I don't like when they are all the same since the beginning (FFVII, and FFVIII). Seriously, these character had only Limit Breaks as a difference. I don't like it, I prefer "characters are always unique" (FFIV and FFIX) over that.

Job system is very good, but it can create some mean overpowered monsters >D