What does the company do well? Great API and you get a well designed and quality interface. The carrier services used are fully transparent which makes them different from other DID providers.
What does the company not do well? Could be expensive and nothing else. Everything was great and they have a good up time record.
What do you wish you had known about the company before using? Telephony and billing solution in one package at very competitive rates. Porting numbers is a little more complicated than with other companies.