After using Asarum (formerly AcerMed's product, now Abraxas Medical's product) for PM, billing, we have switched to AC and just this month to EZClaim. EZClaim has been easy to use, support is always helpful and friendly. The sign up process was simple, didn't take long to test and then go live to send claims. There are some little problems when exporting claims to EZClaim, such as modifiers don't copy over and you have to go through and verify ICD-9 pointers on each claim in EZClaim. Minor inconveniences really. Refiling claims is easy. Both products are working well for what we need in this small family practice office.