This series is *very* hit and miss. Some episodes are genuinely quite good (episodes 3 and 5 specifically) while others are campy, silly, or just come off as some kind of fan fiction. It's nice to see The Walking Dead universe get a little bit creative and experimental - the most recent couple of seasons of the main show have had a handful of brilliantly experimental episodes even if, overall, the show hasn't been great - but here, every episode plays with the "rules" of the Walking Dead universe in ways the other shows wouldn't dare. This can be fun to see sometimes (episode 5's pseudo-noir mystery is an example that works, while episode 2's Groundhog Day time-bending does not) , but it can also come off as schlocky horror camp akin to something like Tales from the Crypt but without the tongue in cheek comedy vibe.
All in all, I'd say this is worth a watch if you're a fan of The Walking Dead - but don't get your hopes up thinking this will be anything great.
