Having a alpha channel and a no lossy mode is a plus but from the picture quality it's not just better. It simply depends on the situation - look at the pictures i've posted...
To get the bmp (source) just use this link: http://www.marune.de/taumel/test/_max/tmp/fral.zip
Artifacts are reduced but please welcome sludgy areas.
To get the bmp (source) just use this link: http://www.marune.de/taumel/test/_max/tmp/fral.zip
Artifacts are reduced but please welcome sludgy areas.