I have been working with them since 2013, during which time they've helped us improve our process from start up through launch/growth phase - their team has always made themselves available at all times when we needed help or advice! They also provide excellent customer support after hours too if you need it (which sometimes isn't enough!). We're now launching into growth mode but are still using some services that PPI provides such as payment processing & reporting etc., so no complaints there yet :) Just wanted everyone who's considering this product / service out here looking around before jumping onboard just be sure about how much value YOU can get yourself first!! Salesforce integration would really benefit my business greatly right off bat though once implemented will require very little maintenance going forward -- especially compared against other providers offering similar solutions like Hubspot et al..