I would advise against it, it generally lacks real use as you can purly get the location of the trackable, and once they are made, they can not be altered in any form. Also you can not get who is hovering over them in multiplayer, meaning you have to make 1 trackable for each player playing the game at that time on everyone's PC inorder to tell which player is hovering over it.
Next to the odd use here and there, they are generally used for full screen item systems and little more.