The ESB Toolkit has been around for a while but for many BizTalk developers it's still not entirely clear when you can use it and what the benefits are. The ESB Toolkit is designed to provide the right benefits to cope with complex and rapidly changing integration challenges. Of course, there are also disadvantages and not in every project it’s convenient to use it.
See the following sections to give you an overview of when to use it and what the disadvantages and benefits are.
In BizTalk 2013 are most drawbacks solved. The installation is no longer a separate download but is now integrated as part of the BizTalk Server setup. Also in previous BizTalk versions, a dynamic send port uses the adapter’s default host but in BizTalk 2013 an adapter Send Handler is configurable for every installed adapter. However, it is still true that the learning curve is high but there is now also a book about the ESB Toolkit and the ESB Survival Guide gives a good overview of wikis and blogs about it. Still, in a BizTalk project where the ESB Toolkit is used it's better to have also an experienced developer that has real experience with the ESB Toolkit so it can really help you.
For more information see: