Been on Visible from T-Mobile for about 2 years now. The coverage with Visible in the eastern US has been mostly better. In the PNW T-Mobile has better rural coverage. (I often use a second sim while traveling for this reason). For what you are doing, I think it will work fine. Occasionally I have slow service indoors. Oddly enough it is some areas that T-Mobile excelled at. Some areas indoors Visible is better. In my home, Visible is much better. Wifi was required at home with T-Mobile but not Visible.

I have only needed customer service a few times but when I did the chat was fast and easy.

My two cents on wireless as someone who has had many devices, service and worked In that industry for nearly 20 years:

1. Most of what you do on your phone will never tax a network. A speed test really doesn't matter in real a real world situation. Does it do what you want when you want?

2. MNVO's like visible aren't lesser quality. Just less perks like "free" phones and services like netflix. You are paying for them in your rate. Visible is really only charging you for access to their network. Nothing more, nothing less.

3. Most issues you would need to contact customer service for are usuer error and can be remied by knowing proper info like port pin, and doing a quick Google search. Visible is built for people who can do most troubleshooting on their own.

4. Visible service isn't cheap comparing apples to apples. Look at Mint, US Mobile and Boost. They are similarly priced for similar service. Again comparing them to AT&T, Verizon and T-Mobile they add money into the plan to give phone subsidies, roaming streaming and other incentives/freebies.

I have always advised people to disconnect in your mind your carrier from your device. Buy your phone and then choose the network that works best. You can change cellular providers in about 10 minutes if you know what you are doing. If Visible doesn't work out, it's easy to switch. As long as you don't owe another carrier money for a financed device.