The best thing is that it has so many options to edit your models/textures in order make them look more realistic! It takes time but once you get used with all its functions (which are very intuitive) then everything becomes easy peasy :) I have not found anything i dislike about poligon as such - maybe too much choice? But if we compare this software against other programs like zbrush or Photoshop etc.,then there isn't really any competition because most people use those instead :).
You can create amazing looking content at an affordable price which makes me happy =)! Also they offer free updates regularly hence saves money from purchasing new products every year!! And lastly their customer support team helps solve problems quickly when required ;) So overall great product & service! Just be patient while learning how things work since some features may seem complicated initially compared with others outthere ;-)I am using P.