The movie isn't bad, but it has a few issues. There's a lot of scenes of characters just talking, or jamming along to music while driving in a car. The scenes are shot well, and the dialogue is fine, but some of the driving scenes fell like padding for run time, and to save on budget. Sure, the background in a moving vehicle is slightly more interesting than characters just sitting in a room exchanging dialogue, but it's hard to ignore the fact that these scenes likely exist for the reasons mentioned.
This movie also some of the worst sound effects I've ever heard in a movie, possibly ever. It's perplexing how a few of these sound effects made it into the final cut, considering the quality of the rest of the film. Firearms have all the audible punch of a cap gun, and grenades exploding are even more lacklustre. The rest of the production is competent, from acting, writing, locations, cinematography, and even the other aspects of sound design, but the firearm and grenade sound effects are noticeably poor.
Also, there's one issue with the movie that made me remove one point from my rating. Near the end of the film, a shotgun appears in a characters hands after a cut, it's fired once, and then disappears in the next scene. It's a pivotal moment in the film, and it has an impact on the plot, so I'd consider this a plot hole, and not just a continuity error. The character clearly doesn't have a shotgun, and the weapon they're holding is ineffective. Then there's a cut, and suddenly they have a shotgun, and their original weapon is gone. Cut to the next scene and the ineffective weapon is back in the characters hands, and the shotgun has disappeared. It's a jarring and obvious mistake in an otherwise competent movie, and it can't really be ignored.
Otherwise, it's an alright movie. I've seen better, and I've seen worse. If you're a fan of the horror/comedy genre, you may find the movie worth watching. Though, be aware the movie is light on both the horror and comedy elements. It's competently made on what I suspect was a limited budget, but that didn't stop the people behind the production from making an alright movie. It won't become a classic, or even a cult classic, but it's not nearly bad enough to fall into the "so bad it's good" category either.