Now I like it. 30 sec has been a frustrating thing. With this improved new driver and eliminaition of this problem, I really shouldn't complain any more, especially given it's price. There is still occasional paper jam issue, guess it's normal. If you need a flatbed scanner with ADF, this would be the first choice.
Update: I took my watch and found out the lamp stabilization time is actually 30 sec. I guess the new driver really didn't do much differently. Well, still a decent scanner.