Canon EF 20-35mm f/3.5-4.5 USM

[MrsBB]

Hello,

Helpfull feed back appreciated here.

Canon EF 20-35mm f/3.5-4.5 USM, I'm looking at this lens tonight. The asking price is $200.00.

Anyone have any experience with this? Is it a good buy or should I hang on to my money?