I recently bought an L1 II with the Tonematch and a B1 sub, so I can't yet comment on the durability aspect. I've used the system on two gigs so far, one a fairly large hall for an older age group of about 150 people, and it did the job with ease. I had my main volume and accompaniment volume sliders on the Pa1XPro at about 75%, the gain on the Tonematch at 50%, and the master volume on the Tonematch at 50%. There was plenty of headroom had I needed it. So, no regrets at all from me.