They going heavy with discounts, which tells me it’s bad and they are desperate to bump their numbers.
It’s just a terrible service to have to pay full price for games when Game Pass gives them to you for just the monthly subscription. No cross platform compatibility like Play Anywhere. No 1st party exclusives that set it apart. When Game Pass merges with Xcloud once it hits PCs and mobile, Stadia will have 0 redeeming qualities.