It's been fun so far. It's no LOST for certain though and I might agree with others that Flashforward was a lot more exciting. (At least it caused me to read MOST of Robert J Sawyer's novels)
I've become interested and this latest episode; "The message back" did a LOT of explaining right at the end so far as who these people are and why they're looking for a new home.
I'll follow it if they go on, there aren't many continuing-storyline shows on now-a-days and what few there are have been canceled. If they don't renew, I'm happy they've given the info they have and wouldn't be too disappointed.