Compared to the Strymon Big Sky (I don’t have the Blue) the Golden is more 3 dimensional, deeper and detailed sounding while easier and faster to tweak.
Unfortunately, the lack of more exciting parameters and features (like almost infinite decay times and freeze) is the only one reason that it can’t replace my Big Sky now. (Maybe it will change with the future updates)
If you have a simple and traditional taste may the Golden is the perfect choice for you, but If you want more and experimenting, creating atmospheric soundscapes -- still the Big Sky provides the most.