It's pretty neat to listen to so far on the first day, but by day 21 I think it'll be a bit old. At least there's the 'Altera Wiggle' as the victory...
Ciel's route is basically the same as Arc's route but with more harem shenenigans in the middle and a lot more happening after what was the end point...
Remind me what the general opinion on OG routes are? Hisui's is basically Kohaku's for 4/5th of it, Ciel is mid, are all I know.
Arc's was nice, but...