When I bought this lens, it rarely came off my camera.  It has since been replaced as my favorite by the Canon 35mm f/2 (mainly because it has better construction and a wider viewing angle for my T3i's crop sensor).  The image is nice and sharp, the bokeh is pretty good (if it's open all the way it's very pentagonal), and it does a decent job focusing.  Manual focusing is challenging and the lack of image stabilization makes handheld video challenging as well, but it's a great lens to get after the kit.  It feels very plasticy, but I haven't had any issues. 

Question: Are the images of very good quality?
Answer: The image is nice and sharp