Has anyone had any experience (good or bad) with this company, iPayment or Pay-Me-Now?

ECX was acquired by iPayment so they are now effectively one and the same.

I'm very familiar with iPayment. We used to represent them in earlier years prior to becoming our own registered ISO/MSP merchant processing business.

IPT is fairly liberal on approvals and the front-end but extremely stringent on risk management on the back-end. (i.e. even a single chargeback or NSF can be problematic at times)

Their accounts are a fairly typical setup whereby there is a monthly minimum, annual fee and cancellation fee that is present as with most other merchant accounts.

Let me know if this info is helpful or if you have any specific q's and I would be happy to address them.