What does the software or service do well? Fattmerchant (Omni) makes processing credit card charges quick and easy. It's all done online, without any credit card-scanning equipment needed. You can easily email a receipt to a client.
What does the software or service not do well? I cannot think of anything that the software does not do well.
What do you wish you had known about the software or service before using? The merchant must wait for the daily batch out time at around 7 p.m. (EST), and cannot choose to "batch out" at some other time. However, that is a very minor inconvenience.
Have you used a competitor to the software or service? If so, how does it compare? We have used several other services, but they have been more expensive and more time-consuming to use, having to key in the numbers into the equipment that we had to rent. With Fattmerchant, the credit card information is stored (with encryption) so it is much quicker to access our recurring clients' info and make the transaction.