I had been using Textra on my Turbo since I got it on Halloween. I'd been using it on my Maxx before that, too. I love it.
While reading up about Verizon Message+ yesterday for a suggestion to my son, I decided to give it a try myself. I really liked it quite a bit, and since it can't be uninstalled anyway, began using it as my defualt SMS app instead of Textra.
Then I found out that all of that personalization isn't as it seems. If you only care about top level personalization (app looks as you'd like but all contacts look and sound the same), no problem. Change the default stuff and you'll be fine.
However, if you want to personalize individual contacts, you're out of luck. Because the app only personalizes individual *conversations*.
This leaves you with three choices: use the same tones, colors, etc. for everyone (the defualt app personalization); save your messages as one long "conversation" to preserve the tones, backgrounds and colors settings; or reset those personalized tones, etc. every time you recieve a new message from a contact (if you've deleted the previous personalized conversation with them).
Needless to say, this is numbskullery at its finest. Who the heck only wants to personalize a conversation? There's no real value added to only having that option with no ability to always hear the same tone from the same person, etc.
Back to Textra for me.