"Good WiFi" refers to a strong and reliable wireless internet connection that allows fast and smooth browsing, streaming, and downloading on your devices. Full definition
Clean, close to restaurant's, easy access to the highway, good WiFi connection. (redroof.com)
I am waiting for better wifi connectivity and cloud service integration, the two things that are holding it back for my purposes right now. (blog.the-ebook-reader.com)
We were also told that there's a modem on each floor, ensuring good WiFi throughout. (travelfish.org)