It's been 3 weeks since I purchased my L1s and I've used them twice. And with great results. I was doing a sound check and stood across the floor from the PA and the sound was great. And, you couldn't pinpoint where the sound was coming from.
I did run into some feedback issues once we were live. This was due to 90 people dancing in a small dance studio. We had to turn the volume up AND we were squeezed into a corner of the room. Not an ideal setup. But, we were able to get the feedback controlled by moving the vocals to the right, and the L1 to the left rear. (I would have used both L1s, but the space didn't allow for it).
The biggest plus is the easy set up and tear down. I can tear one down completely (and bag them) in 6 minutes (yes, I timed it). 2 for 2. I love my L1s.

-- kevinl143 --
full thread here