Start with the stock on the cut list
DWS715 is a fixed 12-inch single-bevel saw. DeWalt lists 2x8 dimensional-lumber crosscut capacity at 90 degrees and 2x6 at 45 degrees. Those figures are useful decision points for a basic trim or stock-cutting station. They should not be treated as the capacity of every orientation or compound cut. Check the recurring boards before paying for a larger sliding machine.
What a simpler station still needs
A fixed saw still needs stable placement, appropriate clamps and support for long stock. An included dust bag is not a complete dust-management plan, and the blade should suit the intended material and finish. Budget for the station, not just the machine. For a carpenter doing suitable narrow trim, those supporting items may contribute more to a usable setup than capacity that never gets used.
Single bevel or a slider?
Single-bevel work can require reorienting stock for some cuts. Dual bevel may save that step on recurring jobs, while sliding movement addresses a different width requirement. DWS780 offers both; Makita LS1019L and Bosch GCM12SD offer different movement arrangements. A buyer should be able to name the specific work they gain from the upgrade. Manufacturer and owner statements about accuracy are not independent alignment tests by TradeGear HQ.