I watch over Trinity project for as long as 3 years. I want to give my
grade on its development activity. I think that the project is not
capable of public use and rather suited for small group of inside
hackers.

Along the history of development there were too much lame
unprofessional decisions. It was fulfilling some strange unpractical
ideas. In fact, it came to a logical unsuccessful end.

If you install 3.5.13 you will get too much trouble. I think, that
implementing all the missing features into KDE4 is less cost, than
waiting when this woe project will get to a decent condition.