Does it last as long as normal semi permanent hair dye? Or does it wash out in the first shampooing?

Mine washed out in the first shampooing if not before.

I live in Hawaii, and work hard. Will this product run if you sweat?

I live in Florida and am a runner, I have not experienced any running when I sweat... But when you wash your face you do get the die on your face cloths.

Does this product truly stay on until washed out?

Yes it does. When I first put it on it looks just a bit reddish brown until it dries. Each day until I wash my hair it even seems to blend and cover the grey more. I use it mainly on the part at the center top of my head because it shows grey there first. I usually wash my hair twice a week because more often than that dries it out. I'm able to wait at least 3 weeks longer before coloring my roots at the salon using this Touchback marker. I keep 2 on hand at all times!!!! It works.

Is the delivery timely?

Since this item is fulfilled through Amazon, delivery usually occurs in a few days, which is considered timely. Note that Amazon does not ship out over weekends.