I wouldn't go so low as a 2/10. For me, I'd put it more at 4/10.

Each quest gives some impression of the day-to-day activities of some Eorzeans, be they in or outside a guild. Some personalities come through as does some indications of what people do to keep their society ticking.

This is, however, overshadowed by the "go here and kill eight of these" repetition. After you've done a couple of the side quests, you know what's coming with the next one and it kind of kills the suspense (unless you get the odd different quest, such as the one obtainable from inside the Conjurer's guild, which was fun for me because I found it unique).