I put the washer and dryer on our main level, best thing we did.
Samsung has a top load washer with a basket for soaking. It didn't seem like much of a price difference but I don't have the 'soaker basket' in my machine. An added sink may not be a bad idea if plumbing isn't expensive. I would get a quote with or without.
I did not do fancy. I told the salesperson I have nothing to steam except veggies, dishes and facial.