I actually prefer seasons 1 and 2 to seasons 6 and 7. "old-school" DS9 was pretty cool, back when they were doing the Bajoran politics stuff with the premise, and before it became the war show.
I can understand both sides (S-1&2 vs S-6&7). There is a very definite difference in tone and timbre between early and late DS9. For me, it is what makes Deep Space Nine such a grand symphony. Sure, both phases hit a few clunker notes here & there, however, all-things-considered, still highly enjoyable from start-to-finish.
One of the things I am curious about this time around is whether the shift is as abrupt as I remember. My recollection, as it stands now, is that it was a pretty sharp turn.
I am also fighting the temptation to jump to my favorite late-series episodes like "Far Beyond The Stars" and "In The Pale Moonlight." I am, however, also dreading "Take Me Out to the Holosuite."