Tactic Advance and Tactic A2 is not in the same league as Final Fantasy Tactic. The consensus is that Advance and A2 is childish and the storyline is lackluster. Tactic's storyline is like Game of Thrones, it's backstabbing, twisted, mature and emotional. If you don't play it for the gameplay, play it for the story.
By the way, might just be me and my old-man-mentality speaking, what's with all these general open posts like "How long is FF2?" and "How long do I have left in FF2?" They don't really provide discussion points and clearly didn't need two threads. /rant