Russian Doll is a pretty weird show in the vibe of Groundhog Day that comes off as a bit off-putting in the first couple of episodes, but seems to really grow on you as it progresses - especially with the introduction of Alan. Both Nadia and Alan are very strange characters that don't seem to be particularly likeable at first. However, as the story progresses (or rather, resets again and again) and eventually concludes, they both grow and become better people. The ending of S1 is somewhat of a conclusion, but intriguing enough to leave space for another season.