It is like hitting two birds in one stone for me.

1. I use the 100mm 2.8 for vows and speeches as well with a 7D
2. I use it for rings shots, etc...

I think, quality wise it does the job for me. And im on a tight budget. plus the size of thing is small as well.

if you have money to spend on 135 Id go for it. Then now, you have still yet to get a macro though.