I would second the first 2 opinions above: usable but not impressive.
Sluggish. Debugger loses control. May have to exit Komodo to stop an errant debugger process. Variable display unreliable.

print "yes? ";
my $answer = <STDIN>;
print uc $answer;
[download]

Where is an interactive script supposed to read the stdin? Apparently not in the output window which seems to be read-only.

Oh, and there is the Rx Toolkit which colors the regular expressions in pale green and light gray.

Rudif