Good question! DS is a fan's delight, it is ALWAYS wonderful, even when it is bad. There are storylines that I care for much less than others, but I still love it. I have watched all of the series at least once now (the earliest portion had only fairly recently been run by Scifi), most of it twice, and some of it three times. That is not counting my original off and on fickle watching.
I find that I really change in my perception of a story line. Things that bugged me no end last time like the dream curse, were just amusing this time. So far, I hate Adam every time I've seen him. But, not watch? Perish the thought! There is ALWAYS at least something going on that is greatness. Unfortunately, the reverse is also true. I love 1795 (which you may have missed?), but then you do have Vicky and Peter Bradford stupidly messing up the perfection. Ah well, such is life in the Collins family.....