We don't care!!
Can we please stop with these loyalty talk, we or nor T-Mobile don't care how long you stay, if you don't like what you got or company changes, just leave, there's is no need to sent regards to us, and enough with this nonsense T-Mobile is bad or useless, slow, coverage is location dependent, if it's doesn't perform well in your area, then choose something else that works, not everyone has the same experience as you, for me T-Mobile works awesome to place I'm at daily, and I like the app layout, and some benefits of t life, good promotions, so I like it, my backups secondary phone service, or WiFi, but T-Mobile is still my main provider, as it's give robust coverage, and strong speeds.
If you don't like what T-Mobile changed then go!!