Anyone have experience with college focus groups?

We have launched our product....went with more of a wide-net ,shotgun approach to see where traction would take and determined that the incoming college student demographic is likely our early adopter. In terms of background; we are basically a LinkedIn for college students - allowing them to connect and share contact information quickly, securely and only sharing their preferred methods of contact. With having identified incoming college students as our early adopters, I'd like to use a college focus group in order to better articulate our value proposition in terms that Gen-Z identifies with and using language that resonates with them. Anyone have experience in this area? In a prior career of mine I'd use this technique in crafting my trial prep and it worked out well. I have reached out to one company and, while I was very impressed, their cost is more in line with what Coke or ESPN would spend, not a start-up that has bootstrapped. Any recommendations, thoughts, insights or even criticisms are welcome.