I recently went through that migration from AT&T to Verizon as Verizon bought Tracfone. I was told that getting the new migration SIM would be literally just swapping new with old and voila! It wasn't voila!, it was no service. Even after doing what was just sending a text to ******* or what ever. That was a service call nightmare. That took several hours- pretty much all day for them to get me working again. Luckily I'm retired and have the time for this. One feature that I used occasionally was the hotspot feature. It worked very well under AT&T. After the painless migration of having several days of NO service, the Hotspot went from working a few days to "setup up personal hotspot". This time I called and must have been passed along to at least 7 different reps of varying skill levels, not including having my call dropped twice and having to start all over again. Press this and press that number… I had two reps saying that the feature was no longer available now. Some did not know how to fix it and some said that it only worked on iPhone (which is what I have), managed to get it working eventually. They got it working flawlessly and a week later it went back to "setup up personal hotspot" again. I would rather enjoy a root canal than spend my day trying get them to try and fix it again. I've had tracfone for years but hey REALLY their support is simply worse than awful. If your service is working fine, I can say that the coverage isn't too bad otherwise.