Anecdata: It directly lead us (Instacart) to try and then adopt Tailscale. Many of us had used it at home and were happy nerds. This gave it a huge initial leg up vs other "enterprisey" VPNs when we were in the evaluation stage.

Tailscale sold itself after that. The docs were excellent and it really is simple to use and run. I was able to do a full PoC in day and prove that I could join all of our environments and clouds into one VPN and have DNS resolving correctly everywhere.