It's been out for a while, but availability has been spotty.
Used it in a sludger. Basic 15min idle flush. As effective as Liqui-Moly engine flush. Meaning you won't see any cleaning visually, but it may clean the oil passages and hydraulic lifters a little. Which in turn sometimes improves oil pressure or quiets down a noisy valvetrain.
Product has it's place, but I achieve same results with MMO, which is $4.12+tax near me for 32oz. And I like that MMO can be driven with. Offsetting low 5W viscosity of MMO with a one-step higher viscosity of motor oil is a good idea, although not required. Just a "safety cushion". (Example: if 5w30 is recommended, use 5w40/10w40 with MMO in 1:5 ratio.)