does a canon 50 mm f/1.2L enough to have a great bokeh ?

Answer 1

here's a link on ebay where you can read reviews of them by ebay members

Answer 2

I don't have any experience with the lens, but f/1.2 is a pretty small focal ratio, and I'd expect a pretty small depth of field. I'm not sure if you consider that great bokeh or poor bokeh? Why not go into a camera shop and try it out? Use manual focus and point it at various things around the room. You should be able to judge the depth of field from that.