Sony PlayStation Portal review: Portal to disappointment - Reviewed

Literally any other handheld will do. Even the more expensive ones.
The PlayStation Portal works fine under extremely specific circumstances

Sony PlayStation Portal review: flawed but fun - The Verge

PlayStation Portal impressions: hands-on with Sony's remote play handheld for PS5 - The Verge

PlayStation Portal review: “I wish I could take this one trick pony outside”

PlayStation Portal review: Alleviator of game-related marital strife

Sony PlayStation Portal review: Portal to disappointment - Reviewed

PlayStation Portal review: fine device for a bizarrely narrow audience - Polygon, playstation portal

PlayStation Portal Review - A Monument to Compromise - Lords of Gaming

PS Portal Review - Is It Any Good? , ps

PlayStation Portal review: I have a stream for handheld PS5 games