Ask HN: What features do you look for when choosing a VPN solution?

I am creating an open source VPN application for mobile phones (iOS, Android) and a chrome extension as a proxy. I wonder what features people expect from a VPN.

My MVP is that the app will functions as a VPN launcher on user's preferred Cloud Provider like Amazon Web Services, Google Cloud Platform, Microsoft Azure, DigitalOcean, Vultr and any other major cloud provider that offers API access.

Features, I envision to add are: Ad-blocking by DNS, VPN Kill Switch, Static IP (if provider has it), IKEv2 IPSec-based VPN solution like strongSwan, and since the server belongs to the user, I plan to add a Terminal right in the app so that the user could connect and do anything they want.

Since the app is an open-source I pushed initial PR to GitHub so that anyone can scrutinize the code: https://github.com/zudvpn/zudvpn