Nice! I planted Cascade this year and got about a pound-and-a-half, but am looking forward to bigger and better next year. I understand that the first year they spend all their resources putting down a root system. I made a trellis out of PVC because I wasn’t sure whether I’d want to repeat the process, but seeing how well the first-year crop came out, I’ll be setting up something more permanent (and sturdier!) next spring.
My experience after four years is that they get bigger every year...this year being an exception due to lack of moisture yet they are still producing a bountiful harvest. But boy, set aside some time for harvesting. :{)