Spectacularly bad... with plot holes
To mesh a combination of gritty drama and romantic comedy, you need some really strong writing and a great director. That wasn't the case here, so we end up with comedy moment that are just awkward, and plot holes that would be "cute" in a standard comedy but here end up being cringe-worthy due to the dramatic, gritty feel.
There are problems throughout the movie but the ending is particularly problematic. So, this dude has committed credit card fraud several times and has fled the cops, who know his identity. His fiancé has made him swear he would stop stealing but how exactly does she expect him to make a living ?
The police is after this guy, but he wants to raise a family with this girl who insists he makes an honest living. Something's gonna give and sooner or later, he has to go to jail first and go clean.