I watched the first series, which ended in the UK a couple of weeks ago. I am very familiar with the Superman mythology and when I was small, I was enamoured of a pictorial map of Krypton in Giant Superman Annual number one.
Even so, I didn't particularly enjoy it, although having seen the first series, I will watch subsequent ones if I can.
After the first episode, I nearly stopped watching because I had too much on my plate but the presence of the character Adam Strange intrigued me. I enjoyed the adventures that he shared with Alanna in Mystery in Space. However, in Krypton, Adam Strange is a selfish and deceitful little wannabe superhero who stole his "power" from Alanna's father, whereas in Mystery in Space, Adam Strange is a swashbuckling archaeologist while waiting to be beamed to the planet Rann and Alanna. I am sure that the opening sequence of Raiders of the Lost Ark is inspired by the opening scenes of the first appearance of Adam Strange in Showcase (right down to the hat but no whip) although I didn't read that story until it was reprinted in Strange Adventures.