Every once in a while the key won't turn. It happens after I take the key out and put it back in the ignition. It's happened less than 10 times in 6 months. Usually I move the key in and out or jiggle it and it takes less than 45 seconds to get it to turn. Today I tried for a half hour before I finally got the key to turn.
Someone told me to try the second key, and try putting lubricant on the key. I haven't done that yet because the key is turning fine right now, and I want to reproduce the problem when I try to fix it.
Also the key sometimes gets stuck in the ignition, It takes some jiggling and a few trys to get it out. But when it's stuck like this, it still turns fine.