Amazingly productive!
I grew these for the first time this year and planted two seeds, which resulted in the largest cucumber plants I have ever seen. From my two plants I have picked as many at 20 cucumbers a day. They have produced heavily for almost 3 months now, I have had hundreds of these. They are delicious as well, a little sweet, and never bitter. Worth a spot in your garden. They seem more heat resistant and drought tolerant than other types.