We have used many types of wireless systems in our ministry and when I was looking for one for personal itinerant use, I went with Line 6 V55L and was amazed at the quality. Other sound personnel gave kudos especially since the belt pack was metal and not cheap plastic. Have never had any issues with it and highly recommend it over $$$ more you would pay for the traditional brand names like Shure, etc.
I use the lav every once in a while more for recording interviews, but I purchased and over-the-ear mic and it rocks. You won't be disappointed.