"Favourable reviews" means positive or good reviews. It refers to reviews or feedback that speak highly of something or someone, expressing approval or satisfaction. Full definition
At the time of release The Darkness 2 was greeted with very favourable reviews from both critics and gamers alike. (pokde.net)
Although accuracy can be as low as 50 %, the devices have met with favourable reviews from forces on the ground. (newscientist.com)
Fashion bloggers were relatively new then and we would write without having to think about how a certain fashion designer or fashion brand would take it when we didn't necessarily write favourable reviews. (purushu.com)