I'm going to visit California next year. I'm from Europe. Since my current carrier doesn't provide good plans for roaming in the USA, I'm looking for a service that can offer a SIM card with data plans to foreign visitors. I have googled some and there are several options out there.
These are just a few I have been looking at. I'm a little concerned about buying from these companies because it doesn't seem like they own the networks like AT&T, T-Mobile does. What I'm looking for is a SIM card with a data plan that gives me 10 GB+, which I can plug into my phone or a hotspot device.
I'm hoping anyone has experience in buying SIM cards when traveling in the USA that they can share. What would you recommend and is there anything I should watch out for?
I see there's a wiki about this linked from another answer on SE. I'm hoping someone has personal experience beyond what is covered by the wiki.