And after it started insisting on creating a PIN each time I start Signal, I finally deleted it from my phone.
You can forget about security if you can't get a seamless user experience.
Plus, it's just a terrible UX for a SMS client. I really wanted to like it, but it's just too obnoxious to use. I've certainly not recommended it, I've had better luck switching relatives to Linux mint (seriously, I am not exaggerating). Creating a group MMS is annoying, and there's a nag screen if you try to call someone from a message within the app. I understand that most of these problems are due to the secure nature of the app, but trying to use it as your full-time SMS client is just too much of a pain. I'll likely still keep it installed, as the 1 thing it does do is make it really easy to transfer files/send messages between devices (send messages to yourself, then download them using the client's for other OS's).
Personally, I don't feel the UX is "terrible", I can use it to do most of the things that I could do in WhatsApp. My friends and I also tested out the video call feature and found the quality to be the same, if not better.
That has never happened to me.
The result is uncomfortable, since Signal never knows the other side removed it, so messages land in thin air. Several times did I have awkward moments when someone was angry "I thought you'd let me know if it was cancelled" - "I did - I sent you a text about that two days ago! On Signal!"
