I think it is a beautiful name. I tend to like Greek names. I agree it could be used as a tribute to a
Philip or
Phyllis in the family (I've got both!) It's not too common but readable and recognizable. As my sister would say, it passes the "substitute teacher test". I think it would be read intuitively by most people (at least in the US).
One odd thought, it reminds me of the word "filament" like in a lightbulb XD