The best thing about this tool is that you can easily connect it with sales force CRM (Sales Cloud) or any other third party software like Zoho, SugarCRM etc. You need not worry if your contacts are in Gmail because they will be synced automatically once connected. I have used few apps from xAppEx but their customer service was very slow at times which made me feel uncomfortable using them for long periods of time.
Their support team needs lot more improvement as well. It's an excellent appβ¦