The ease of integration with Salesforce, its ability for any CRM system or third party application is awesome! It's also very easy from there too integrate into other applications that you may be using such as Slack/Hipchat etc..
I wish it was more customizable but not enough features so far are lacking customization options (which i understand they're adding). We have been able find many times where we needed some customizations done which were hard if at all possible without hiring an expensive consultant who would charge us by hour basis even though our project only took less than 2 hours total time spent working together overall!! Also their customer support team can always help me out when required :) Our customers love how much easier access this has given them compared ot previous systems used previously within my organization - now no longer do clients need multiple passwords just one login allows secure logins across different platforms like slack / HipChat &.