Hi, Jack and all! Ive been using AC with EZ Claims for 3.5 years, but just lurking here for a couple of months, since my main support group is the IMP (Ideal Medical Practice)group on Yahoo. I do all of my own billing, and I have been quite satisfied with EZ Claims, especially for the price. Their staff were very helpful with getting me set up initially and answering any questions that have come up since then, which have been few. They also give you a helpful manual, which so many software vendors don't. The patient info crosses over from AC to EZC seemlessly, but, as you mentioned, the modifiers and the numbers that link each CPT code to its appropriate Dx (ICD9) code get stripped away in the transfer. Since I know that, I don't bother to enter them into AC; I just enter them to the bill in EZC right before I send it on to the clearinghouse. That doesn't take long for me to do, since I did the visits and know the codes, but it might be a pain if you are trying to have some other staff person get the claims ready in EZC to send to the clearinghouse. After I do my own "scrubbing" of the bills, the program checks them for obvious errors and alerts you to fix them. They use Capario as their clearinghouse, and I haven't had any problems at all with them. They will catch outdated or incomplete ICD9 codes and report to you to fix before sending the bills to the payers. The payers report back to you (through EZC) right away if they think the patient is not covered (usually because the subscriber ID # is outdated). As far as reports that I want to generate for myself for payments, accounts receivable, etc, I have been satisfied with what is available. I am not aware that they have fee schedules available. They help you get your payers entered into your payer library. If a payer does not accept electronic bills from Capario, they send a paper claim instead and you will never know the difference. Since I have never billed with anything else, I really don't know what other features may be out there that EZ Claims doesn't have, but it works for me in my very low-volume practice.