I like that it is easy to use once you get used to how everything works-it's not too complicated but also has enough options so that you can customize what you need without having to spend time learning something new! They are very responsive when contacting them about issues or questions which makes me feel comfortable using their service.
There really isn't anything bad at this point in my opinion because they have been great up until now! So far nothing negative. We're solving our mobile food ordering problem by allowing customers access through an app instead of waiting around while we serve people orders over phone/in person.