(e-mail address removed):
Please elaborate... Do you have knowledge or experience with them?
What do you base this opinion on?
Statistics, experience? Installation at minimum adds weight gain. Registry
entries, including new filetype keys. Sometimes the install tries to sneak
things into the sysdirectory. Once in a while seizes associations. Etc.
Best approach any time running an installer is to use a rollback strategy.
Keep a backup of the files in your sysdirectory and use something
like TUN [someone else will need to provide its URL] for the registry
rollback.
I do realize you were looking for anything specific about the software
you mentioned, but lieu of that, and better IMO, is just never trust
installers. Use them, because usually you got to, but protect yourself.
I install like thousands+ progs a year -- am not commenting from thin
air. But with registry tracked and sys files backed...even the nastiest&
buggiest installer can't sink this rig.