For people going into OW, how about just find a pair from Craiglist for cheap. In OW, you won't swim much. Once you are certified, after a some dives, you will finger our what you are looking for. Could it be instant propulsion, precise control, efficient for long swim, heavy pair, light pair, ... you can them buy the one that does what you want.
Nova is kind of expansive and have a unique behavior, if after some dives, you figure you need something else, such as heavy fins that is good for precise control, it will be quite expansive to make a change. I made the same mistake.