Nick, this is a wonderful and overlooked treasure from Caron.
The "Champagne" bottle is a little silly, but the scent itself is pleasant and warm. It is good oriental with a very mild vanilla sweetness.
Yes, it is a unisex and should be sampled.
"Champagne" can be tricky as a word. Remember what happened to YSL Champagne; it was changed to Yvresse.