I'm looking to switch to Visible here soon after being on Google Fi for many years. Just looks like a cheaper rebranded Verizon to me, and has all the features I would need for a cheap price.
Some people use a lot of mobile data - but I'm on my phone all day/night for business and pleasure, watch a lot of video content etc, but usually am within Wifi range of my home or office. I struggle to use more than 6GB of mobile data per month...
Before switching to Visible, I worried a lot about prioritization etc. After switching from Verizon (proper) -> Visible, and I can honestly say I haven't noticed any difference in performance. My bill is significantly lower though, which I do enjoy.