I felt the same way for years. I don’t recall which track changed my mind, but I started liking him when I had a realization that his music has a childlike element to it that I haven’t heard in any other artist. He often rebels against traditional electronic song structures, preferring instead to create sprawling expanses that finish in a very different place from where they start.
I started loving his music after I noticed how much care goes into each track, and the wide array of technique he employs.
Xtal, Ziggomatic 17, Fenix Funk 5, Mookid, 4, T69 Collapse… these tracks sonically have little in common with each other, except that they all sound vaguely “Aphexy” as a result of his trademark playfulness and high quality of polish.