The Pro 575 has been in production since 2020. Owner reports on Smoked BBQ Source, Reddit's r/Traeger, and the BBQ Brethren forum consistently praise: (1) the D2 Direct Drive controller's reliability over years of use, (2) the polished Traeger app, (3) the hopper clean-out trapdoor for swapping pellet flavors, (4) the consistency of low-and-slow cooking. Common complaints: weak searing at the 500°F max, occasional temperature swings on windy days, the painted finish prone to rust in humid climates without diligent care.
The Westwood has been on the market 3 weeks at the time of this review. Engadget's hands-on noted the simplified button-based controller (no knob) and the absence of Super Smoke and Keep Warm modes, framing the Westwood as a "no-frills" simplification. Early Traeger Forum reports praise the P.A.L. accessory system and dual-tier configuration but echo Engadget's concern about the missing pellet sensor. Long-term reliability data on the Westwood doesn't exist yet — the controller architecture is new, not the proven D2 design from the Pro 575.
The risk-adjusted reading: the Pro 575 is a known quantity with 5+ years of owner data. The Westwood is a launch product with unknowns. For owners who hate being early adopters, the Pro 575 closeout is the safer purchase. For owners who want the latest feature set and ecosystem, the Westwood is the smarter long-term play.
Both grills produce essentially identical cooking results — same Traeger pellet system, same convection airflow, same temperature precision. Food quality is not the differentiator between these two; ownership experience and feature ecosystem are.