I purchased two Shure BLX24/SM58 T11 approx 9 months ago. One has been used very heavily at a serious professional level, the other at an amatuer and semi professional level. Both have performed perfectly, and still are in perfect condition. I have lots of compliments about them and queries about where I obtained them. I didn't let on, naughty eh! ( ;
The professional also had there own Radio Mics and a choice of much more expensive Radio Mics I own. They all prefered without exception, the new Shure Radio Mics.
I also liked the clever way the receivers scan for best channels and conflicting other other Radio Signals. Also they are totally legal in most Europe Countries without licence.
It is not mentioned in the documentation, However they both came with excellent canvas type carry cases with custom cut foam inserts, that say's it all ....Quality. ( :