I still watch and have since it started. Now that Angel is gone, Smallville is now my only "must must see" show, i.e. I make sure to record it if I won't be home.
I'm no comic expert but I love Superman stuff and have enjoyed seeing how they have reimagined the mythology on Smallville, dropped little hints and references, etc. Lois was actually cooler than I thought she'd be, and it was hilarious that Clark called on Lex to help get her out of his hair.
I will miss Reeve's appearances.
I wonder if they will reference his character much or have Kidder come back for any face time.