I am thinking of upgrading to an iPhone 6s Plus from my current iPhone 6. I am on the T-Mobile network. My coverage at home and at work is poor, but I have WiFi access so it is not a big deal. If you are on the T-Mobile network and upgraded to an iPhone 6s/6s+, can you please share your experience with improved coverage or lack thereof. I know it will differ by area, but I just ant to get a general idea whether it is worth it to upgrade to the latest iPhone.
TIA
TIA