First of all, I Love the guitar intro, it gets the song going smoothly.
The flute at :46 is very upbeat, like Pink said "It's a rather enjoyable piece that just seems to keep bouncing along all the way through.".
Call me a sucker for breaks like the one at 1:02. From then on the melody just flows into the flute/synth solo at 1:48, and a very well placed solo at that.
I like the feel in the second part of the solo, around 2:09, it feels like your floating.
3:00 another break, followed by the beat.
3:28 the synth comes builds back in. with the flute breaking in at 3:52, and stays in the song at 4:09.
4:32 interesting flute/rock session, I've never heard a flute and a rock band before .
5:35 the main part of the song returns for one more time.
The ending with the flute bringing the song out fits perfectly.
All in all, this is a great song that everyone should download IMO.