I have been using the system for nearly four years now. To call this anything less than essential would be doing a disservice to what it has done for me. The amount of time it saves me from office paperwork is priceless. I no longer need to come home after a long day and type up handwritten notes into spreadsheet and mail out an invoice or quote. Everything is done onsite. My customers receive quotes nearly instantaneously, and I'm no longer trying to estimate on the fly. The team at ES2 is very attentive and constantly striving to help advance my business as a whole. I'm glad I can count of them being in my corner when I need them.