fwiw, if you have basic spanish, he's very easy to read in the original. very clear, simple prose (and you only need to read one story at a time).
how is someone like donoso rated? that's the kind of thing i find impenetrable...
[edit i just googled to see what others think, and i guess you don't get articles like this http://theclubofcompulsivereaders.blogspot.com/2011/07/es-ta... if he's as easy as i thought]
I find him easier to read than most other Spanish short story writers. Could be the logic.
Can't judge the merits of it myself, but it seems plausible.
I don't think any native Spanish speaker would have trouble understanding what he writes.