I have a chance to purchase a 200mm f 1.8 and I am looking for anyone with any advice or experience with this lens.

I know it is a niche lens an will only be using it at 1.8.

I know it is out of production and will not be able to be repaired by Canon.

I know the new version is 200mm f 2.0 IS and is also an excellent lens.

I am going to get one or the other and I would like to discuss further pros and cons.

Thank you.