In the United States, my airline (Pinnacle) is the only regional airline that uses LIDOs. There were major hiccups when it came online, too many errors, etc. But now things have settled down, and I actually like the LIDOs. Takes a little getting used to, but once you get it, it's easy. It's been just one year since we switched, but if you asked me to look at a Jepp, I'd be like wuh?