Unfortunately, its main weakness is that (as far as I know) it's not integrated in to emacs as w3m is. If it was, I'd probably look to it as a serious contender. But since it's not, I'm afraid I'm stuck with w3m -- for better or for worse. (Right now, it's for better, as I'm quite satisfied with w3m -- except for my occasional Javascript needs, for which I fall back to Firefox, Opera, or Chromium).