I have found it impossible to continue watching beyond season 10. For me, season 9/10 were a struggle to watch but now with season 11 out, I can't get myself to start watching it. It doesn't seem like like the show will be ending anytime soon either which is a shame. The first 6 seasons were amazing, I would look forward to watching each new episode. But the seasons since have been slowly degrading in quality. A lot of the script seems to be recycled and I really hope the creators end it on a relatively average note whilst they can.
Seasons 1-6: 9/10 Season 7-10: 7/10 Season 11-onwards: unable to continue watching Overall: 8/10 (for now)
Seasons 1-6: 9/10 Season 7-10: 7/10 Season 11-onwards: unable to continue watching Overall: 8/10 (for now)