Before signing up I was hesitant to switch my phone service to Nextiva. I never heard of this company before and didn't want to risk anything. While I did my research before signing up, I needed more trust. So I first tested the phone service without transfering my numbers over. Customer service was good from the start, my phones were setup easily and the calls were clear. Making it a practical no brainer to switch my phone numbers over to Nextiva. I think it's a good phone service.