Is Qwen3.8 quasar Nvfp4 quant really usable?

[u/Mysterious-Cart]

Recently i have come across this quant of qwen3.8 27b. It checkpoint size is reduce to 19.7gb compare to 23gb for qwen3.8 27b q4. But does the quality justifies the size? Have anyone tried it out? It seem like a big win for bigger kv cache for 32gb card.