Depends on one's definition of bad.
Last I checked, Spotify still doesn't have an Apple TV app, and their watch app came only recently. Their colour scheme is horrendous as well. For a company complaining about the deleterious effects of competition, they sure are doing a poor job of implementing the newer features in the areas that they are able to control. So in this regard, Spotify would totally not be serving my needs at all, were it the only music streaming service in town.
I am also not a fan of how they have decided to basically combine music and podcasts into one app, or how they are basically pushing ads down people's throats.
Apple Music feels like the one last true "music player app" without any of the gimmicks or shenanigans.