Full disclosure: I work for Forkly (http://forkly.com), a FoodSpotting competitor.

I think that it was probably an okay exit for the founders (but definitely no homerun), and for most of the early angels. As for BlueRun Ventures (who put in the bulk of the last round), it probably wasn't that good of a return.

Of course, these exits often don't get paid out based on equity, but on some negotiated deal that will make investors at least somewhat happy. As for the founders, I'm pretty sure they got signing bonuses, probably tied to staying at OT for a year or two.

It will be interesting to see what happens to FoodSpotting (apparently it will stay standalone), and how OpenTable will make use of it.