You might like it. I tried an old set of Biopace 52/42 chainrings on a road bike last year. It helped with my choppy pedaling style. Due to various injures affecting my back and hips my cadence had become stompy.
The smaller Biopace rings are more eccentric and seem to offer a bit of leverage for folks who mostly mash down rather than spinning smoothly. The big Biopace rings are more nearly circular, less eccentric, and feel a bit better to me when spinning as smoothly as I can manage.
I've tried using only the small 42 ring on flat terrain in a smaller rear cog for cruising but it feels less smooth, a bit herky jerky. Works best for me for climbing.
And both Biopace rings feel best to me with shorter cranks. I tried 'em with both 170 and 172.5 cranks. The slightly longer cranks strained my knees just a bit. Switching back to 170 fixed that problem.
I also tried re-orienting the Biopace rings away from the factory preset, based on tips from various users. I tried it for awhile but switched back to the original orientation.
And I do single leg drills on the indoor trainer as part of my injury-recovery physical therapy to smooth out my choppy cadence and strengthen the upper legs and adductor muscles.