Whether or not you might like oval or other non-round chain rings is something only you can decide.

FWIW, Shimano spent a great deal of money on ergonomic research to develop their BioPace rings. Unlike most other non-round rings, the BioPace eccentricity changes with tooth count. The larger rings are almost round, while the smallest rings are almost square. They are designed to be used in a certain orientation with the crank arm (there are index marks to line them up), but some people find they prefer to shift them from Shimano's intended orientation. Do whatever works for you. Shimano's assumptions in designing BioPace rings may be different from your own riding style.