Good watch, could watch again, and can recommend.
I'm not a big fan of any of the cast, but this is a great concept, and they actually do a great job in not only their roles, but creating the atmosphere needed to sell the situation.
It really is an ever evolving puzzle of dilemmas all the way to the end of the movie.
The biggest problem I have with it is the social-economic concept of getting married they throw in. A moral quandry of time invested vs legal responsibility sort of throws off the pacing of the movie a bit, but adds to the humor as I imagine is intended.