*Review updated on April 17, 2014
As you can read on the Microsoft TechNet blog ( http://bit.ly/J2Jcni ) UAG has entered the final part of its lifecycle.
"Mainstream support will continue through April 14, 2015, and extended support will continue through April 14, 2020."
The features you used in UAG are now available in Windows 2012 R2 using the operating system's DirectAccess and Web Application Proxy functionalities.
"Customers will be granted a Windows Server 2012 Standard server license for each UAG server license with active Software Assurance to allow them to make the transition."
Consolidate remote access from different networks, users and devices into a single product.
UAG is able to work with all the most used browsers and operating systems (including Android and IOS with Service Pack 2)
Powerfull policies and tools to manage and monitor connections and activities.
Rules are not too difficult to create and manage
A lot of possibilities to customize the product and the aspect of UAG to be compliant with your company's guidelines
Direct Access is something that is now available also in Windows 2012
At the moment (01/05/2013) we are waiting for Service Pack 3 of UAG to interact in the right manner with Exchange 2013, Lync 2013 and do on.
The ForeFront TMG installation made by UAG is something you have not to modify or use and that is a pitty (it is there only to protect the server where UAG is installed).
UAG is a really good product and it is not difficult to use if you compare it with other softwares / hardwares that deliver similar features.
Given the fact that other product of the ForeFront family are going out of support, if you want a Microsoft product for publishing and remote access, UAG is the only choice you will have in the next year (years ?)