The first half is way better than the second (punchier, zippier, cleverer), but I pretty much laughed my tailfeathers off for most of this movie.
Granted, it's stupid and vapid and boorish, but I love that in comedies.
2011's Bridesmaids, for example, spent a lot of time puking, pooping, and littering in the street, but I've rarely had more fun at the cinema.
Like a Boss won't achieve anything anywhere near that zenith, but it's still funny and a good night out, and I'll drink to that.