This was really cool to read and was worth the wait. It was fun to see Castiel and Dean growing closer together. And Dean's bewilderment for finding out that he cared about the weird, nerdy alien.

Sam will love that spaceship. He's probably going to have a lot of fun trying out experiments that he could never do normally. And Castiel could use it as a test for how he's fixing the ship! And Dean can either have fun or sigh at their nerdiness. Or both.

This was awesome. It was also great to see that Sam's issues with losing his brother wasn't something that he could deal with easily. It sucked for Dean, but it was good to see that it long-term issues can't be glossed over in a couple of weeks/months.