I've got mine... using with 50" seiki. I cannot get this thing to stream without horrible macroblocking. Using ethernet - Speedtest @ 25Mbps download. They had me reset Ultraflix, which only improved streaming marginally. really disappointing so far I haven't been able to get it to read a fat32 drive yet either. From what I understand, Ultraflix and youtube are the only two that this player can stream UHD right now. Although i haven't gotten youtube to work either
* edit I was able to get it to read Fat32 drive by partitioning 3TB usb 3.0 drive to 1TB partitions