We had a lot of problems with the buttons sticking, not starting, and not stopping.

We use the watch to time swim meets.  For the price, it does a gret job.  The only draw back is that its split function is a running split, so you have to do some math if you want to get sequential split times.  But hey, what do you want for short money?

Use the stopwatches to time computer graphics applications.
They work great and didn't cost very much.