I had nothing but full blown scepticism for SMS until I actually sat down and had it explained and disected for me. The fact that I "own" any report that I open and have final say as to whether it can be closed off or not is a vast improvement in my opinion, plus the fact that reports can be submitted completely unanimously if needed.
I am probably what can be called a believer now, with the only obstacle being the fact that it is another form to fill out..