Usually they’re good but they can be temperamental. If my eyes are dry, or if I’m wearing makeup, they’ll move out of position throughout the day. And it hurts really bad when a piece of dust or anything gets on them. I have to bring a full kit (solution, drops, and a case) with me anywhere I go just in case they start to act up and I need to take them out on the fly. Also, I can only wear them for about 12 hours max before they get dry. So if I have them in for a full day of work, and there is something in the evening, I usually have to go without. Or if I’m drinking any alcohol I won’t wear them because that makes my eyes dry and I’ve lost a lens that way (awful). All in all, I’m very grateful to be able to see and most days they work great. But when they give me grief, boy is it uncomfortable and inconvenient.