Just assume anyone coming door to door is a scam. It's not a viable or responsible way to conduct business.

Never show anyone at the door your electrical bill, that's all they need to switch you over. It's technically illegal, but that won't stop them, and they get a commission on each switch. Many people don't notice for months , and then usually end up having to pay a fee to switch.

BBB has 104 complains filed with Arcadia currently - so yeah, the company might not be a scam, but I'd be wary of doing business with them. The person going door to door however, may be running a scam.