I like that they have an intuitive interface for both desktop users as well as mobile phone or tablet screen size, so it's easy to use even if you're not tech-savvy! They've also helped us build our database from scratch - which is essential when we want people who are interested but haven't yet signed up with what your business has to offer (which can be hard!) Their customer service team always responds quickly and helps me out whenever there might be confusion about something technical related during my setup process.
It would help tremendously having some more "out of box" features than just simply adding contacts / emails into lists; however this isn’t necessarily specific to them per se since most providers will require customizations beyond basic setups before being able to do such things. We were looking at different solutions online including MailChimp vs Aweber etc., then came across kudoShiB because many had great reviews regarding its ease of.