I did my spin training in a Yak-52. The first spin was eye-popping... I knew the theory but never expected it to be so quick and steep (it was about 60° nose down but at first seemed almost vertical). The second one was somewhat easier. From the third time on, it was pure enjoyment. Although Yak-52 is quite dangerous in inexperienced hands and will not get out of a spin by itself, it can safely do all kinds of spins - steep or flat, upright or inverted, and with the right technique recovers easily and reliably from all of them.
After the Yak, a spin in a Cessna was nothing to write home about.