This is one of best tools I have used so far for my business, it's very easy use when you get how this works with your mail server provider like gmail etc.. It does give me all information about where are people in their journey which helps our marketing team understand what kind messages need more attention from us or not! Sometimes we can't see who has opened an email right after that they close them without reading first - even though there was no spam filter applied but still sometimes i would love if could be able too track every single move made by each user through emails whether he/she read /closed message immediately (without opening)etc I love how easy it is to use this service. You can create mailboxes, labels, send emails to contacts, etc. It's very user friendly. I don't have any dislikes at this time. I wish that you could have more than one email address per account. However, if you're only using this for sending your company's messages then you won't have an issue with having multiple addresses. This is great for anyone who has a lot of different mailing lists they need to send out.