Softonic is Spain's most visited software download portal and after reviewing doPDF they've named it "outstanding". An excerpt from the review:
An excellent PDF converter that's fast, easy to use and serves as more than an adequate replacement for Adobe's software.
You can read the full review here: doPDF on Softonic.com
P.S. And the Spanish version of this site shows a lot of doPDF fans too, given that the number of downloads surpasses 200000 and there are well over 150 comments for it: doPDF on Softonic (Spanish)