Trinitron monitors are nice monitors. As far as those that bash shadow mask...lol...get a life. Both types of monitors have their strong points and weak points. But a high quality monitor of either category will look marvelous.
I have a CTX (Sony mock-off) Trinitron and I like it. Every once in a while I noticed the horizontal lines, but only on screens with a large ammount of white and only after a good deal of monitor viewing.
I hope this has been helpful to you.