First off, go watch "Groundhog Day For A Black Man" by Cynthia Kao on YouTube. It's shorter and better, and it's likely where Netflix shamelessly took this Oscar-winning idea from.
Second thing, if they decided to expend it and make it longer, the ending was kind of disappointing as it didn't really develop well. It started logical but slowly grew into ridiculous levels where the storyline was no longer possible to believe. I think it hurt the message they tried to deliver as near the end it was no longer believable, so you could no longer feel "this is really what happens in real life" (which is something you could feel at the beginning). I think they could have made it worth it if the ending would provide some explanation as to what is going on so the less logical scenes will still make sense, but that didn't really happen.
That said, the message is still important and I liked what they did with the credits scene, that part I felt like got the point across in a smart way, so still giving them points for that.
Second thing, if they decided to expend it and make it longer, the ending was kind of disappointing as it didn't really develop well. It started logical but slowly grew into ridiculous levels where the storyline was no longer possible to believe. I think it hurt the message they tried to deliver as near the end it was no longer believable, so you could no longer feel "this is really what happens in real life" (which is something you could feel at the beginning). I think they could have made it worth it if the ending would provide some explanation as to what is going on so the less logical scenes will still make sense, but that didn't really happen.
That said, the message is still important and I liked what they did with the credits scene, that part I felt like got the point across in a smart way, so still giving them points for that.