We started five years ago by using Vtiger, an open source tool. It worked OK for a while but we now feel that it is outdated. We tried an upgrade a while ago but it broke our systems, so we stopped updating it--I do not know if it has gotten better. We feel that nowadays there are better alternatives out there. In a few months we will be replacing it with Salesforce and others as we see fit.
Co-founder & CTO - Price f(x)
1%Stacklist Startups Are Using Vtiger
Visit the website: https://www.vtiger.com/