I would be surprised if their sub service was not a failure. In fairness the service has hundreds of games but most in the last 5 years has been garbage and beyond that, where is the value? As a consumer I might as well buy old games on GOG, Steam or wherever at my discretion rather than be locked in to a sub that costs the same and have nothing to show for it afterwards.
These services need thousands of games, across a range of publishers. Even better if they support downloads or streaming as options. So basically I don’t see subs working unless it is large platform owner who can incentivize publishers to partake in it.