I used to own a set of 25 2.8, 35 1.4, 50 1.4, 85 1.4.
Gorgeous lenses. I loved the look of them. Sharper than most vintage lenses, but still soft and low-con enough to take the edge off of modern 4K sensors.
The 35 1.4 was my favorite by far, but it was also by far the most expensive. Make sure you get all MM versions, as the AE versions have a funky saw blade bokeh shape. You might be into it but I always found it pretty ugly in the one AE lens I had (the 50).
Just pull the trigger if you find a good deal.