Sundays can be very boring. At least I don't like these typical German(?) Sundays with all the people spending their time with humdrum activities.
I loved Sundays when I was child - lovely trips, and ice-cream was much cheaper at that time.
Ok, Sundays are ok (or perhaps better than ok) - depending on how you usually spend your time.
Probably I can't see a big difference to the other days of the week because I can't really stop working for more than a few hours.