Not yet, but it's on my bucket list. It's an excellent design, and one of the very few fully legal units available now. The only downside I can see to them is that the transmitter pack eats batteries for lunch. According to Line 6, they're only good for 8 hours on alkalines, which is probably optimistic and means they're probably only good for 3 on NiMH, and 1 or 2 on NiCads. It's not a huge expense, but there's always the worry you won't have spares at a crucial moment. And like any digital transmission, the signal won't just deteriorate as the battery rides down the discharge curve, it'll simply stop working without warning.