I've hosted this software server (with and without mods) for friends and family a few times. Its pretty solid and the mods help bring additional fun or to fill in the gaps of low population. If you love WotLK, i'd recommend it.
It looks very interesting. What's the default content like? Looking at the SQL in the repository, doesn't seem like there's that much quests provided?
A sibling commenter quipped about which quests are bugged and which aren't, but the reality of it is that the vast majority of quests work perfectly fine, including the quests that are heavily scripted (such as the Battle for the Undercity)