I don't own one, but it seems that a Featherweight is a machine for those that have multiple machines and want a vintage machine because it can be fun and an addition to their collection.
For a machine that will be a gift and a first one for the recipient, please take her to some sewing shops and let her try out various models in your price range. She will enjoy the chance to choose what she likes, and also get a chance to try out the features offered. So much better than getting something she may find a challenge.