Two things I ADORED about the pilot:

1.  Seeing Sherlock answer his email.  In fact, I liked the computer lab better as the location of John/Sherlock's first meeting.

2.  The long-legged, black-jeaned, tousle-haired coltishness of Sherlock in the scene with the pink case at the flat.  When I think of Gatiss' comment about how young the 'boys' are in this series (or was it Moffat?), that they have a long way to go together, I think I might have enjoyed an entire season with Sherlock this young.