• you don't need to send emails manually
• you can send emails to large recipients group or groups
• add own leads and prospets
• create HTML and text messages
• everyone is getting same emails
• everyone gets same series of emails
• everyone get same tutorials
• you have a lot of time left for yourself
• you can send emails 24/7/365 on autopilot
• access to your account from everywhere
• access to your autoresponder account from various devices (PC, Laptop, Smartphone, iPad)
• you are building your communication channel with your recipients customers, consumers, members, etc.
• build your brand
• build authority
• build reputation
• build trust
• build consistency
• share your stories
• build business
• create surveys
• ask questions
• teach people
• build revenue
• you can create great email marketing campaigns and results with very small effort

CONS

• Autoresponder can't comunicate with the recipient "in the real time"
• Autoresponder is still "a machine", there is no "human touch and feel" present
• for example, if somebody sends you question over email, you need to answer it by yourself
• that is why you need to keep here and there "an eye on autoresponder" and your emails
• when you want to target different niches or different recipients, you need to set also different campaigns
• lack of "human" communication an lead to higher "opt-out" ratio
• if you forget to update your content after couple of months of sending you can ruin your hard established authority or reputation as an expert
• software hacks or damages can also leave negative impression to the recipients