I am surprised at the negative comments about the intenz.
It makes installing or adjusting a chain so much faster, instead of ten turns of the little screw hidden behind the bar, you have less than one turn, you never have to line up the little peg with the little hole, and the intenz is a much stronger set up. I wrecked my old adjuster a couple times, hopping out of the tree with my saw hanging off my belt, and hit the nose of the bar on the ground. I biffed the white metal the adjuster was mounted in. This set up is much stronger.
I never had any problem adjusting the bar, I can't imagine what you are doing wrong.
I also never had it clog up or break, so I don't see that as a problem.
The price is right. They don't wear out and you get new adjuster mechanism each time you replace the bar.
The biggest arguement in favor of the intenz, is that the old technology is so bad. Just think about the engineeering of the little screw mounted in white metal, the little peg in the slightly larger hole in the bar, the location of the screw, it's all so ducky and hard to use, not to mention slow.