I borrowed a gold bag for a christening a few years back because my usual black cross body felt wrong against a pale green dress, and the second I put it on I understood what it was for. It didn't try to match anything. It just sat there catching the light and making the whole outfit look like it had been thought about, when really I'd got dressed in nine minutes flat.
This is a bag for the occasions that have a bit of ceremony to them. Weddings, parties, anything with a dinner and a dress code, the kind of evening where your shoes have already decided to be uncomfortable so the bag might as well pull its weight. It also does surprisingly well at Christmas and through the darker months generally, when everyone else is in navy and black and a bit of gold against a coat looks deliberate rather than try hard. I wouldn't reach for it in high summer against bright prints, it can start fighting for attention rather than adding to it.
On fit and size, think about what actually goes in it before you fall for the colour. A lot of gold bags are designed small and structured, which looks lovely on the shoulder but means a phone, keys and lipstick is your limit, so check the depth and the width of the opening, not just the strap drop. If you're tall or broad shouldered, a tiny gold bag can look like an afterthought, so sizing up slightly or going for a cross body version rather than a handheld one usually balances better. Try it against your body in a mirror before buying, because what looks elegant on a hook can look like a doorknob once it's actually on you.
The honest limits are worth saying plainly. Gold is a finish, not a neutral, so it won't quietly go with everything the way a tan or black bag will, and it can look costumey with daywear, especially anything casual or sporty. Cheaper gold finishes also tend to show wear fast, scuffing at the corners or dulling where your hand rests, so this isn't the bag I'd carry daily on buses and in and out of bags for life at the supermarket. It wants fewer outings and a bit of care, kept in its dust bag rather than loose in a drawer with your keys.
If in doubt, go up a size rather than down, a gold bag that's slightly too roomy still looks intentional, but one that's too small just looks mean.