I love how it helps me to see if my emails are reaching their target audience, which is very useful when sending out newsletters or other types of marketing material that can be time consuming! The only thing i dislike about this service is sometimes you need to refresh your page in order to get accurate results - so not great if working from home or at any distance away from an internet connection!! We use email verification as part of our digital strategy for new clients who want more information before they purchase anything through us (they have found all sorts via Google!).