Hello, I use chameleon submitter every day myself. It works well if you submit multiple times a day and can get your hands on some partner accounts (either free or bought).
The confirmer is a must have, too tiresome to manually confirm all the emails.
I've tried the partner requester a couple years ago and got a bunch of partner accounts but I don't think the price was justified.
Haven't tried the linklist submitter.
Feel free to use my linkingcode fi you're buying! ;)