The most useful thing about consentio is that you can share an e-mail link with someone who has not yet signed up, so they can signup without having to provide their personal details first. I do like this feature because it saves time and makes things easier by only providing them access once, rather than needing to send out more emails inviting people to join. It's also nice when using consentio if another person signs up through my referral code, which gives me credit too! There isn't really anything i dislike at all, but maybe just the fact that there are some minor bugs here and there. If you're looking for something simple, free and easy to use, then consentio might be worth checking out. You don't have to worry about sending multiple invitations as well, since consentio will automatically send invites to everyone in your contact list until everyone has joined. This helps save time and effort.