Anyone tried Simcorner.com?

Aussie here travelling to the US for 15 days and comparing Airalo to this esim from an Australian provider called Simcorner.com. Anyone tried it? It is a bit expensive but offers unlimited AT&T data and calls on a temporary US number for 30 days, where Airalo just offers data via Verizon/T Mobile. Which would have the best coverage for outside metro areas?