High APR coins are to be avoided because the supply will quickly outpace the demand.  You will be left holding a bag of these coins if you buy a node.  My advise is to find a project that looks worthy of investing and then go from there.  Quantis website only shows 1 actual human face for the community manager and only gives his name as 'Timothy'.  You can also see that 'Engagement' and 'Sizzlor' are also team members, using avatars not their real faces or names, and that the founder is 'Dick Johnson', using an avatar, but it points to his bitcointalk profile.  In other words run like hell.