This is probably the nu-who episode I re-watched the most and I realize how much it successfully pulled off everything it attempted. The episode works perfectly as a re-introduction of the Doctor as a character while also introducing his character arc of a Doctor traumatized by the time war and trying to come to terms with himself and in only a handful of really well written interactions we instantly get the stakes of the character, his mysterious lore and heavier backstory with a lot of emotional impact (I especially really like Eccleston's monologue comparing himself to how the earth is spinning). What I think is great is also how everything is balanced with a lot of comedic bits to avoid making an episode who is too heavy or too dark emotionally (I really like all the Jackie bits) and while I think some moments are definitely too cheesy for their own good (The plastic mickey bit especially) or that the pacing is a bit weird at times, I still think it's overally well executed and that the highlights overshadow easily those flaws.

Overall a great introduction and a stellar first episode for one of the best new who seasons.