Just got my Amazon Fire Stick 4K (my first Amazon stick) about 30 minutes ago and I already love it WAY better than the TiVo Stream 4K. Advantages versus Stream 4K I've seen already: 1. Dedicated Remote buttons for rew, play/pause, ff that actually work in the video apps I care about (Netflix, Prime Video and HBO NOW). 2. Much more responsive for pause/play, ff, rew remote presses, especially in Prime Video 3. For Prime Video it has both ff/rew and 10 sec skip back and forwards and they work very fast. This is HUGE improvement over the TS4K app. 4. Reelgood app launching for Amazon Prime Video actually works! Not only does it take you to the right episode, but it also starts playing the episode automatically. In contrast Reelgood on TS4K just takes you to the launch point of Amazon. 5. Has a "Recent" section of videos I've been playing so that I can easily find to re-launch to what I was watching. 6. With Alexa you can skip around videos easily with commands such as "rewind 2 minutes" or "fast forward 1 minute" and the response time is incredibly good. 7. Fire Stick has a lot of settings built around controlling TV inputs such that even with CEC disabled on a TV you can have it switch inputs through Alexa commands such as "HDMI 1", "HDMI 2". Very, very happy so far compared to TS4K. I'm sure there are probably other advantages I haven't discovered yet and no doubt some disadvantages, but I'm loving the Fire Stick 4K so far. I'm already wishing I hadn't bothered with TS4K and instead spent the $50 on another Amazon Fire Stick 4K.