No I haven't read any complaints.
As always ... steer clear of any registry "cleanups". I just don't trust'em.
I make my registry changes manually, very carefully and only after have backed up not only the registry but also a complete system image.
You use the programs "uninstaller" to remove unwanted programs installed by the computer manufacturer.
These programs were installed because they were paid by program publishers and distributers to do so.
A good uninstaller knows how to properly "remove" no longer needed registry keys.