Interesting comment in the T-Mobile Q2 Earnings Report yesterday. https://s24.q4cdn.com/400059132/files/doc_financials/2021/q2/NG_TMUS-06_30_2021-EX-99.1.pdf
Specifically, this part:
• Approximately 80% of Sprint customer traffic is now carried on the T-Mobile network
• One-third of Sprint customers have been moved to the T-Mobile network
Not terribly surprising to me that the customers who use the most data were most anxious to move to T-Mobile, while the majority of customers--who don't use much data--are perfectly happy with the Sprint network as it is. I'm definitely in that category and in no rush to give up the superior coverage of the Sprint network for the possibly-superior capacity of the T-Mobile network.
(Also, at least in my case, since LG phones are now discontinued, moving to a new T-Mobile phone means extensive phone shopping that I'm not looking forward to, rather than just picking up the latest LG device and being happy.)
After all this time, I still have yet to see any Sprint site conversions that are operating. I've seen precisely one that has new gear, but still only seems to have Sprint bands running on it (along with 312250). I don't know what is taking them so long.