It depends on where those 15 seconds fit. If I have to hold onto some thought for 15 seconds, forget it. If I'm loading an IDE or some other tool I'll use all d

It depends on where those 15 seconds fit. If I have to hold onto some thought for 15 seconds, forget it. If I'm loading an IDE or some other tool I'll use all day, it's fine. My bookkeeping software has lots of 1 second delays and it's really annoying.