I am new to these forums and have read these posts with interest. My experience with Upscale has been delightful. I have had the on/off relationship with high end audio since I heard Maggies back 40 years ago. This go around ,I purchased PrimaLuna and retubed both the preamp and amp to sync with my system.( No maggies to drive) One damaged Brimar NOS arrived after being delayed in a winter storm. Upscale packs and ships tubes carefully and delivers quickly with priority mail ,however the storms almost 1 week delay brought a wet mess to my doorstep. They ,without any documentation other than my word, issued me a gift certificate for twice the value of the damaged tube. Never any pressure to purchase the PL , however I wanted a valve based system before my ears followed my legs to the ravages of age. There is human variability within every experience. Mine was most enjoyable. Be well...