I like that they have several different options for the amount of data you can store in their system, depending on your needs as well as what type of card payment service provider is used to process payments.
The customer support staff has been great! They make it easy for those with no technical knowledge at all to use this platform effectively. We are able to easily track where our customers went within the mall or shopping center we operate using their mobile phone app (which uses GPS). This allows us to see which stores draw people into our area by monitoring foot traffic patterns.