Makes you a bit better at flying by reference to attitude, particularly for the landing.
Other than that - no, not really. It just happens that some of the most fun aeroplanes to fly out there are taildraggers. But the mystique of tailwheel flying is massively overstated by far too many people who should know better.
Relevance to flying a big jet - virtually nil. Chances of improving the fun in your life en-route, and in your spare time once there - moderate.
G