Operation easy - Has mode memory so starts where you want it .
Long travel - No - average I would say
Noisy ? - very subjective - but it does make noise - its not stealthy
Stuck - pressing it to activate - if you press from the edge of the button it can lock up - unlocks when you let go - cure is simple - dont click from the edge of the button , try to keep central pressure - and no problems
I have two of them the b9 and the b2s ..I described the clicky to old4570 as skrunchy ..meaning they make a weird sound or feel like the outside edges of the clicky are dragging down the side of something .It's not audible but it's a feeling like crunching a plastic bottle or chewing on packing foam peanuts.It works fine it's not something that bothers me .. this light is one of the best lights you'll ever buy .. dollar for dollar it's a winner .I have hundreds of lights and this one is in my top 5. I'm buying a second one with a neutral emitter ,I have a farka and appreciate the xeno brand too .reasons to buy this light? .. for one reason it's SS. It looks like a stainless steel nitecore D-10 .To me the xeno is oddly shaped and all the colors are ugly except black :P. Runtime on this light is great , driver is super efficient , it's screaming bright on a 14500 , the tint for being just a regular r5 is wonderful ..it's a beautiful light that I've been telling people to buy since the day I recieved it.Overall it's a very nice light.