What does the software or service do well? This is our only CRM software we use, and it works great. We have tried multiple software, but the ease of use made this one better than the rest.
What does the software or service not do well? You do get what you pay for, and it is by far the simplest system we have used. It does not interface with our ERP or our BI software.
What do you wish you had known about the software or service before using? We got a really good walk through of the software prior to purchasing, and we even had a free trial period, which helped a lot.