I enjoy watching how FF13 feel like one big cinematic movie during the whole time when I began watching, especially since the guy who was playing skipped minor repetitive battles and dodge battles like a boss.
Watching the boss battles was intense and looked difficult unless you know the a pattern to beat them.
Graphics were gorgeous and this game sense of technology is advance.
Took me a long while to realized the actual setting that the party was standing on (a planet with a mini floating planet station from above the skies). Unfortunately the game as a whole doesn't seem to have any replay value to it, you beat it and be done with it since it's one big road of a game and it has about zero npc interaction.
As a artist though, I really really enjoy the graphics of the game, it even happen to influence me a good bit ;)

After finish watching FF13 walkthrough, I notice the guy did a FF13-2 walkthrough, nice coincidence huh.
The introduction started awesome and the introduction of the action sequence was pretty cool too (even though it does suck that you'll be too caught up on smashing the right buttons instead of taking in the visual action scenes fully). Afterward they drop the "time-traveler" bomb out of no where, I was in the awe of ".....ok".
Afterward Serah's clothes suddenly transform into a poorer choice of design, I would be fine with her modern society stylish clothes but that time traveling clothes is stupid. I'm impressed that the combat system has some new minor changes on your 3rd party member which is a "monster" with a few of it own abilities, the reasoning behind having it though is just too simple and brush off as something to not think about much later.
The "Live Trigger" is a nice put in the game that gives interaction in the game but you can make Serah look like an idiot which is a fun laugh (though this will usually take away the game's seriousness a ton of time).
The game has replay value in a way since it has multiple endings based on the choices you made but the real ending basically does not "end" the game.
So I guess there could be a dlc to further the story for FF13-2 or there could be a FF13-3. Kind of a "Hey! Pay more for this series".
Oh and plus this game has too many repetitive puzzles, god, so many repetitive puzzles and a stupid idea for a merchant.