“Ultimately, “The Dark Tower” rendered me grumpy and unhappy from a fan’s point of view and worried that the episode was not suitable for children at all. As a lover of horror, I quite enjoyed the really scary parts of the episode and I was impressed with the writing in the first two-thirds of the episode. I think there were some inconsistencies in the latter part of the episode and a lot of things just didn’t add up but I’ll have to see how future episodes play out before making a final judgement on that.”
Addicted to Media summs up my opinion quite nicely as well, the episode felt rushed and not suitable for children. Not very Merlin-like at all. As to Guinevere being the one AGAIN to fall under a spell from Morgana, seriously doesn’t she ever learn?