My experience is that Uber was roughly ~20% cheaper overall.
The good outcome is that the taxi companies ramped up, got out a decent app (with most of the features from the Uber app) and we got discussion and even law changes about how Taxis operate (though not necessarily all for the better).
Finland got some updates to taxi law, too, and Uber stays illegal (drivers will be prosecuted for providing an unlicensed taxi service). Sounds like a fair outcome.
The good outcome is that the taxi companies ramped up, got out a decent app (with most of the features from the Uber app) and we got discussion and even law changes about how Taxis operate (though not necessarily all for the better).