The ability to use it with our own API, no need of any other third party service or software which will be costly in terms that we can't afford them so far! It's quite expensive but worth every penny if you are working within your budget limit as well like us who don’t have money just yet until now :). I didn; t find anything dislike about this app except its price tag!! We used Workerbase along side Salesforce Chatter (which i highly recommend) since they both work together seamlessly hence saving me time from having 2 different apps up at one place instead using only 1 single App called 'WorkerBase'.