Tidal HiFi Streaming?

Tidal just launched in October at $19.99/mo. They claim to ONLY steam at 44.1kHz/16 bit (1411kbs) so it is CD quality. Has anyone signed up for this? Is Tidal the way to go or Deezer? And, what would I need to start the service- I have WiFi or hardwire option, an iPad- would I need a laptop? External DAC? Sorry to ask so many questions but it's an exciting service, especially if I can save files to my hard drive. Rather than invest in an upgraded FM radio, this seems the way to go.