I will Highly Recommend SAP. My cost for the Basic service and three mobile users is around $80 a month. Most of my customers choose email invoices which makes it a ton easier on me. SAP will also take care of mailing out your invoices that need USPS. it runs .79 per invoice, which isnt bad. I too have started Credit Card billing as well... and went with Blue Pay to intergrate with SAP... you only have two choices on that... but it has made it simple.. I have decided for now to not do the client portal which cost extra. It may be of some use to customers.. but most prob would never use it, and the additional cost is a bit more than I wanna pay. The program is awesome but takes you inputting all the right info from the start. You will prob need Jonathans help alot at the start... but after you figure it out, it isnt bad. Take your time at set it up right.... the first time. And by this i mean learn the difference between packages and schedules... packages help on fert and spray, mulch, seasonal color, but isnt for weekly service. you can truley account for every service you plan to preform and make sure you dont miss one... but you have to be on it each day ! it will make you more profitable because small jobs dont go overlooked and forget to be billed.