Never heard of that one (though it sounds slower and more tedious than even old snail-mail turn based games, lol). The name reminds me of a game called Subspace a friend was addicted to for a while. It looked like a fancy multiplayer version of Astroids and was really mostly a glorified capture the flag type game with space ships. It did have an advertising tagline that cracked me up though. It was something about, "Meet people from all over the world... then kill them."
The big thing that kept him hooked was his team ranking and individual rankings. All online games with any kind of team and social aspects come back to the same issue of the time sink that you mentioned though. I won't go into much detail on EQ (though dear god I could), but progression beyond a certain point required joining a guild of other players and no matter how serious or casual one was there were expectations, strategy, and coordination of time involved. After regularly ditching family and friends more and more frequently for a while to keep up with in-game "responsibilities" I started to realize what was happening and re-evalute my life a bit, haha. Tried to play more casually and balance it with RL but it would keep pulling me back in so I quit cold turkey. Luckily, Sony (or Sony Online Entertainment to be more specific) made it much easier on me by rebalancing the game in such a way that made my main character's whole character class essentially obsolete right around that time. I've tried not to buy Sony products ever since out of a grudge I've held for around a couple decades.