Amen. Avoid the push-in style with the internal spring contacts. The new ones with a straight-in clamped with a screw are great and easy.

My Dad was hired as an expert when a housing development had a rash of FIRES. Push-in spring-contact devices were the cause.

The push-in spring-contacts are higher resistance than screw terminals. Higher resistance gets hotter when current flows through it. Heat weakens the spring's force, increasing resistance, and it cascades from there. RESULT: intermittent connections, heat, scorched contacts (often invisible inside device), and fire. Damage is hopefully contained within the box, but not always.