Probably made it to around season 8 or 9 of that?
I left shortly after Christina Yang was written out but by that point i was struggling to even watch anymore, it was way too much like a soap and the storylines and big events became progressively more ridiculous ( not that GA was even remotely realistic, as a patient i would avoid being treated there if i knew all the stories)
There are only two OGs left and one of them is way past retirement age. Two other long-running characters are getting the the boot. Meredith only shows up on occasion, so the show is called Grey and Grey is barely there.
I check in occasionally and am amazed they lasted this long, i don't know 80% of the characters anymore and i don't care anymore. Occasionally i will watch the first few seasons or clips, it was just fun back in the beginning.