No, I've never had a W124, though I've ridden in one a few times. I do, of course, have an R129, 1994 vintage. I bought it on a whim, and I like it for the open-top motoring, but I'd not have one as my only car unless I did very little mileage; it, too, is an old car, and on it, too, it shows when compared to a W211.
I understand that old cars have their attractions for many, but I'm (relatively) immune to their charms, I'm afraid. I could replace my W211 estate with the W124 estate that started this thread, and I have no doubt I could very happily live with it if I had to, but I choose not to.