HATE the switch, love the size and power.
"Fenix, using a baseball analogy, my PD25 with the tail switch was a home run. Unfortunately, the E18R with the side switch knocked it squarely into the stands with that side switch. Even though you have a procedure to supposedly lock the switch, and a secondary procedure to put the clip over the switch, the light still comes on in my pocket, and it gets REALLY hot. If I don't notice it visually, I notice it when my leg starts to warm up. I bought it a few months ago and I'm looking to replace it. Unfortunately, all of your lights in that size and power range have the side switch, so I'm beginning to look at other manufacturers. I think your engineers need to start looking at Version 3 on a lot of your lights and either bring back the tail switch or redesign the side switch to mitigate the problem of turning on in the pocket. I'll check back periodically, but unfortunately, until that is fixed, I won't be purchasing another Fenix light."