Ignoring the bloatware bit, ADT has gotten a whole lot better. Rather than being limited to serial-port transfers (I still have to make my null modem), you have ethernet for speed and audio for the serially-deprived.

http://adtpro.sourceforge.net/

Now I have to build a null modem adapter to try it. (Since the IIc and IIc+ and IIgs that I have on hand don't have the tape port.)