I like this mic
After a very disappointing experience with Countryman and their "customer service" to repair a $460+ mic that lasted less than 1 year, we decided to upgrade our entire wireless mic system to the Line6 digital system. This mic came with the set. We too had initial feedback issues but cycled through the various mic models in the transmitter pack, adjusted the EQ on our mixer channel and eliminated the feedback. We now have excellent gain before feedback and the mic and system sound incredibly clear compared to our old Countryman mic and Sennheiser system setup.
I came back here to actually buy another one of these HS70T's to have as a backup. They are reasonably priced, look good, and sound great.