Ok, so final verdict. Tales of the Walking Dead is a bit campy and doesn't take itself too seriously, which makes the lackluster acting almost tolerable. The story itself turned out to be not too bad, albeit somewhat corny. Next week, it looks like it has the same undertones. Almost silly. If they do it well, it'll be something to watch, as long as you don't expect any real suspense like we've come to expect with its predecessors.
Conclusion? If you go into this with zero expectations and you do NOT compare it to TWD, it's a watchable show. I don't see it winning any awards, but I almost enjoyed how bad it was. This really is one you have to judge for yourself. Some people will love it, some will hate it, some will be right in between. But don't listen to other reviewers, try it yourself and form your own opinion.