I've been using the app for a couple of years now and I have mostly enjoyed the experience relative to the few other VPN solutions I've tried (OpenVPN, Nord (old version), ProtonVPN).
Things I mostly like:
- The relative simplicity of the app interface (though 'advanced' settings should just be a sub-section of 'preferences')
- How quickly/easily I can get connected (download, paste in account #, click connect - or change location.
- Relatively easy split-tunneling
- Easy switch between OpenVPN and Wireguard protocols
- Easy local network sharing (preference toggle)
- Tracker and ad block options (have not tested efficacy, appears to be DNS-based)
- Internet kill switch (will not fall back to non-vpn connections if set)
Things I don't like:
- Can cause issues on boot/reboot if kill switch is enabled (Windows - disable kill switch, restart app, re-enable kill switch)
- Limited options for mobile apps (and some unexpected disconnections on android)
- No configuration of app layout or color scheme
- Somewhat annoying upgrade (not bad, just no in-place upgrade solution)