A dining room POS is really two jobs wearing one badge: it has to run the floor, tables, courses, splits, tabs held open through a three-hour dinner, and it has to talk cleanly to a kitchen that is firing dishes in sequence rather than all at once. Most comparison lists score POS systems on generic features and miss that seam entirely, which is where full-service operators actually lose time.
Toast built the deepest version of that link: table management, kitchen display and course firing all read from the same order, and the KDS module talks to it natively rather than through a workaround. The cost of that depth is real, though. The advertised $69/month plan is not what a full-service site pays; once you add the modules a dining room actually wants, the bill lands closer to $200 to $400 a month, on their hardware, on their processing, on a multi-year contract.
TouchBistro takes a different bet: the iPads run a local network rather than depending on a data centre, so an internet outage during a Friday dinner service does not take the till down with it. That architecture is worth more than most buyers realise until the night it matters. It comes at $69/month for the POS bundle, annual contract, and KDS and inventory are separate add-ons rather than included.