The best thing is, they have a great support team who can help you even after purchase. Their customer service also has some nice features for the user like their dashboard which helps in tracking your tickets and other things related to it. It's not so easy if you don't know how to use this product as there isn't much documentation available online. So, i would suggest people should take few days or weeks before going live with their implementation. You will be able to manage all ticketing system very easily using D4R package without spending too long time.