This is why you really need to watch the show yourself and make up your own mind. Some think it is great. Some think it is so-so or "not that good", and some hate it and think it is so unbelievable as to be unwatchable even once. You really must decide for yourself. All I can add is that the set sold very well so there are many who apparently believe there is replay value. (Some even bought it knowing there wasn't any )

Maybe Frailty would have been a better example than TSS. In that movie there were several plot twists along the way that upon close scrutiny do not make sense. Still I own the movie and will watch it again at some point.