What is so good about FaceTime? I'm not asking to be rudeBut for me it works so-so more often than not, with delay on voice calls, broken connection on video chat, etc., both on wifi and cell data. I've consistently had way better results with Skype. I use a 6+ and 2015 MBP.
iMessage has always also been so-so for me. Incoming messages seem to pop up on the Mac whenever they feel like it, not seldom with a delay of several days. Sometimes messages are simply lost. It's been very unreliable in general, so personally I have no problem with switching to SMS/MMS alongside FB Messenger/WhatsApp etc., now that I go over to Android with the Note 7.
I agree that basic texts are just as good, sometimes more reliable, than Messages; but FaceTime is much more reliable for me, at least in the past year (it was flaky in the past). I often have dropped calls with Skype, connection problems etc.; but I don't remember the last time I couldn't connect to FaceTime or had a call drop out in the middle, even when I'm not on WiFi. IMO Apple has done an excellent job with FaceTime, similar to the improvements with Maps (a much better job than they've done with some other things, to be fair). The other thing I like about FaceTime is that it's just always on, there's nothing to think about, and it's as simple as making a phone call - no app to install, no status to update, no signing in and signing out. In my Contacts app, I can easily see if someone has FaceTime installed (and if not, I just make a regular phone call, rather than go through the hassle of finding out whether they use Skype and asking them to sign in, etc.).
