It comes with granular carbon, and coconut carbon which are not very good. The quality of these filters are not very good (including sediment and RO membrane). Also it comes with with these little horizontal DI housing that sucks. And the handheld tds meter is a pain compared to an inline.
I started with an aquasafe system and my canisters are still from aquasafe (minus the DI which I wouldnt use aquasafe) and it will get you by but it is worth it to buy higher quality filters and an inline TDS meter.
GO with BRS or spectrapure, its worth a little extra IMO.