좋네요 effectively has the same meaning as 좋하요. 좋네요 simply adds in the element of exclamation. For example, A: This cake is good, isn't it? 이 케이크는 맛있죠? B: Yes, it is good. 네, 좋하요. Or B: Yes! It's so good! 네! 진짜 좋네요!