I have a double right now (one large, one small) and I use the small one to drip dry anything that doesn't go in the dishwasher. It's convenient, but even so I'm planning to switch to a single large sink in the future. I haven't found any double sinks that I really like, but I will admit I haven't seen a great solution to drip drying pots and pans. I really do use that second sink a lot (even if I towel dry my pots, which I don't usually bother to do, I still have to have a place to put them until I've finished the dishes). Most dishracks I've seen are intended for plates and utensils, which I just put in the dishwasher. If I can find a good dishrack for pots and pans, then I will be very happy with a large single basin sink I think.

I've used a bathroom where it had a ginourmous clam shell (that's what it is btw) and it was a pain to use. You have to be very careful to not scrape your arm on the edges. I guess each to their own tastes.

Do you know that you have posted on the Australian Houzz forum? I don't think that either of those products are available in Australia so you won't get much feedback from here. Dr Retro of Dr Retro House Calls

An undermount stainless steel sink will match well with your brushed gold tap and white benchtop. Although different in colour, the sink and tap shared same kind of texture so It won't be distracting. Colour wise, the sink will match perfectly with your white benchtop. We got some photos of our customers who have used the same kind of design before, check out the link below if you would like to have a look. https://fontaineind.com.au/colette-kitchen-laundry-tap-mixer-brushed-gold https://fontaineind.com.au/ariella-kitchenlaundry-mixer-tap-brushed-gold