I think it's really pretty and elegant. It's different - I've never met one - and as someone with a really common name, it's important to me that my DC aren't one of five with the same name in their class (I know first-hand how annoying that can be). But people will (I think) still have heard of it and know how to spell and pronounce it etc. Also, it doesn't really have any "connotations" e.g. being associated with any particular age group/social class/part of the country etc.
Was wondering what people think about this? What would be your impression of a "Griselda" (let's face it, a lot of people make assumptions about someone based on their name)?
PS have namechanged as its a v unusual name and don't want any RL mates to spot this!