Does anyone have any constructive opinions about Telex wireless vs Sennheiser or Shure? There seems to be a dearth of information about them (which is probably somewhat instructive on its own). This would be as part of a small wireless mic system (3-4 mics max) for a smaller church (approx. 200 attendees). This is for basic worship, not for a rock and roll band setup. They are replacing/upgrading some very old equipment.