For a French comedy film, it's alright. There were definitely LOL moments, but the characters presented inconsistent behavior e.g the loud man alternating between abrasive and timid and other characters alternating too.
We also got to know tidbits about some other characters, but it seemed as if they were conveniently thrown-in to explain a minor event.
All in all, humor cannot make up for a shaky plot. They have a good idea and it needs a bit of polishing before turning into something truly funny and riveting.
Finally, things weren't rounded up nicely. The end wasn't abrupt, but one is... read the rest.