The dataset is a great find. I do suppose it’s enough for a simple start. I like the idea of comparing different features so for example show 5 forks of different prong lengths, show 5 forks with different ornaments, and so on. However, I suppose preferences for different fork qualities are not independent. Say, someone might prefer a fork with longer prongs if the handle is thicker, but shorter ones if the handle is also thinner. Depending on to which degree that is true, trying to determine preferences for individual features while ignoring the bigger picture might be futile.