I went to Purple Haze bistro once, and I took a lunch set. From what I can say the food is as good as in Purple Haze (which means simply delicious) but the lunch set isn't a good idea, unless maybe if you're alone.
Indeed, portions are really small, and ordering "normal" dishes that you'll share with several people may not cost much more, but will satisfy your appetite much much more.

Apart from that, also a peaceful place with nice furniture.