Not at all. Anywhere further out like Nacka or Täby are nightmares to get to. Or if neither start nor destination is in the inner city. Or if it's after ~1AM. Or if service in your area is havily reduced (or shut down entirely!) because MTR can't be bothered to respect their drivers. Or if you're in an Arriva area, period.

Maybe it looks brilliant if you're used to some US shithole. But even at its best it can't hold a candle to somewhere like the Copenhagen metro. And even that pales when compared to the trusty car that will take you from anywhere, to anywhere, whenever you want.

Source: lived in Stockholm for 8 years so far, half of which were carless.