Yes, please let me know.
Does it work as well against slicing as puncturing?
It depends on the design.
I wear a stab vest at work, given that my LEO employment is correctional in nature. For what I do, I find them worthy. For protection on the street, not so much, unless one is working a security detail or some such, but then I'd tend to favor bullet resistant and stab resistant over just stab resistant.
Vest are hot, no way around that. Also, even with a well measured vest people will know you have a vest on. That would be abnormal for the average Joe or Jane Q. Citizen. I fail to see where a knife would be the most common weaponry threat here in the United States outside of a correctional setting. Thus I find their use limited, while very good, for the setting they were designed for.