I love some of Glass's works, but others I find annoying. If you experiment on the cutting edge, you will have clunkers and duds, but also break ground every now and then. Or invent something half-finished that a future composer will improve upon.
Works that transitioned from Baroque to Classical are often considered clunky by modern standards, but that's because they were trying new things. If those pioneers didn't experiment, we wouldn't have Mozart and Beethoven. (I do enjoy Baroque though.)
Keep experimenting, Mr. Glass!