Over the years I’ve had two sets of Powerlines, and they’ve worked, but are limited. I never used powerline while I had a high-end hifi. Therefore, I would question how a high frequency powerline signal on your mains might affect your hifi components.
I now have a Netgear Orbi mesh system, and can get ~700Mpbs over the 5G backhaul. There’s no competition here.
The Orbi is a technically very good option. I just don’t like the company. Their support, in my experience, seems to prioritise upselling you. They also dabble in sharp practice. For example, they’ll email you to inform you of an impending re-subscription to their Armor protection. No mention, though, will be made of the price. Want to raise a complaint? Then you’ll have to subscribe to their support option. Want to use the "family protection" service? That’s another charge. I should add that my Mesh system (1 router, 3 satellites) was ~£1k