No problem!
Now, if you ask me, VoLTE is where the 'controversy' should be hehe. That, I can't say that it improves my calls or that it degrades them. It's just 'meh'. WiFi calling (before Mexico and Canada became a no-roaming zone for T-Mobile) did come in VERY handy for keeping in touch with friends and family, and it definitely helps when overseas. I did find, however, a couple hotels in China that blocked the calls; not sure because the hotel purposely blocked WiFi calling or because of China's 'Great Firewall', though.