I would've preferred this to be f/4.5-5.6, though. No big deal but I can feel that if I buy it, I'll be subconsciously longing for it to be as fast as the Canons (which are widely used around), even though the difference is just 1/3 stops, and that'll be leading to frustration. 
(I know... first world problems)

(I know... first world problems)