In a spam can with a separate ADF, either fixed card or just one you rotate yourself, and without a slaved DI, there's not a lot of point, as you will struggle to keep the 5 degree accuracy, and if you really flew it down to minima there's very little chance you'd be in a realistic place to land the aircraft.
It is however very useful for situational awareness, and a very easy (if not accurate) approach to fly when overlaid on an EFIS HSI.