Is There Anything Wrong w/ Playstation 2 API?

adubey asks: "Over and over I've heard game programmers say that it is difficult to write games for PlayStation 2. A lot of these quotes came from gaming sites or the mainstream press, where there probably aren't as many programming-literate readers as there are on Slashdot. So perhaps Slashdot might be a better place to ask ``what is wrong with the PlayStation 2 API?'' Are there any PSX2 programmers here who might be able to give some insight? Can this even be discussed without breaking any NDAs?" This is the first time I've heard of such a thing. Where did this rumor get started?