This is topnotch. 这个东西真高级. This is superb. 这个东西太棒了. I'm very impressed. 真令我心动. It's very nice. 这真是好东西. It's high quality. 品质非常好. It must be worth a lot. 一定很值钱吧. It's excellent. 这东西真是好. It's outstanding. 棒透了. I like it so much. 我太喜欢了.