I missed that. I read the original post before it was edited. If I had spotted that, I certainly would have chimed in.
Yes, the Wally has the new UI, just like the Hoppers. The DVR hard drive option is the only way you can use both tuners on the Wally. Without the hard drive, it basically functions like a single-tuner non-DVR, even though it technically has two tuners. Just hook up a compatible hard drive to the USB port on the Wally, and pay Dish a one-time $40 fee for them to activate the DVR functionality. After that, you can record two shows at the same time, or watch one show live while another show records from the other tuner.