All - I want to state this upfront that I am looking at pure technical limitations without going into the opinionated user usage aspects or learning curve requirements. After going through this site requirements, I think it is alright to ask this question.
Everywhere I read only the advantages of Gradle and how it has hit the sweet spots that both Ant and Maven missed. But nowhere I could find clear technical limitations that perhaps makes it difficult to integrate with Gradle. In one of the places it cited about lack of Eclipse integration, but then it turned out that you don't need a maven like plugin for Gradle.
Any inputs in this regard is highly appreciated.