CLFloor returning nil in iOS 8

So I am trying to get CLFloor in Core Location to give me data instead of returning nil in Swift, but I have not been able to. I have tried my own code and the following from NSHipster:

import CoreLocation

class LocationManagerDelegate: NSObject, CLLocationManagerDelegate {
    func locationManager(manager: CLLocationManager!, didUpdateLocations locations: AnyObject[]!) {
        let location: CLLocation? = locations[0] as? CLLocation
        if let floor: CLFloor? = location?.floor {
            println("Current Floor: \(floor?.level)")
        }
    }
}

let manager = CLLocationManager()
manager.delegate = LocationManagerDelegate()
manager.startUpdatingLocation()

Does anybody know how to make this work on a device or in the simulator, I'm sure the answer would benefit a lot of people. If anyone knows of any good resources on this or CLVisit, that would also be helpful.