Ten 21

You'll find Ten 21 tucked away on New Street, in that stretch where Neath's got a bit of character returning. Walk in and there's none of that try-hard vibe you get elsewhere—just a straightforward bistro that knows what it's doing. The place has clearly built a loyal following (223 reviews averaging 4.4 stars speak volumes), which tells you the kitchen's consistent and the staff actually give a toss about what they're putting out. It's the kind of spot locals actually return to, not somewhere you'd visit once for the Instagram moment.