How bad is the lag, really?
It is the complaint to weigh hardest, because it is about the everyday experience rather than an edge case. A smart display is something you touch and speak to many times a day, and a delay between a tap and a response is felt every single time. Buyers describe the display as slow and laggy, and it can be slower to answer than an older Echo, with commands needing repeating. Touch response can also feel perfectly good, so experiences vary. Small, inexpensive smart displays in general run modest processors, and interfaces tend to grow more demanding with each software update. If snappy response is what you are paying for, this is the wrong product.
Can I watch Prime Video on it?
You can, and it is oversold. Watching anything of length on a 5.5-inch screen across a room is a compromise rather than a feature: it is for following a recipe, checking a news clip or keeping half an eye on something, not for an evening's viewing. Think of this as a bedside clock, kitchen assistant and smart home panel that can also show video, not a television.
Should I put a device with a camera in my bedroom?
That is a decision to make knowingly rather than by default. This combines a microphone listening for a wake word with a camera, in a size made for a bedside table. Amazon includes a mic/camera off button and a built-in shutter that covers the camera lens, and says it is not in the business of selling your personal information. Learn where both controls are on the first day rather than the first time you want them, and use them. You are trading an internet-connected camera and microphone in a private room for a device that tells you the time, shows you the door and turns the lights off. Plenty of people take that trade happily; think about which room before you unbox it rather than after.
Why do reviews disagree so much about the sound?
Because both groups are describing the same thing from different expectations. Bass depends on moving air, which needs either a large driver or a large enclosure, and a device built for a bedside table has neither, so any improvement works within a hard ceiling. Amazon's promise of bigger sound and twice the bass is a claim about improvement, not a promise to match a proper speaker. Owners who expected a small screen with decent sound tend to be pleased; those who expected a music speaker tend not to be. If audio is the main reason you are buying, a plain speaker with no screen will serve you better, because none of its cost goes on a display.
Is it worth the money?
Buyers disagree, and that disagreement is worth taking seriously. If you will use it daily as a clock, timer, recipe screen, doorbell viewer and photo frame in an Alexa home, it earns its place. If you mainly want music or quick, snappy responses, the mixed reports on sound and lag suggest you will be disappointed. Either way, buy from a seller with easy returns and give it real use before the window closes.
What is it genuinely best at?
Being a smart home panel with a face, particularly if you own a compatible video doorbell. Voice control of lights and thermostats is something a plain speaker already does; seeing who is at the door, pulling up a camera feed, or checking a timer across the kitchen is what the screen adds. Add the photo slideshow when idle and recipes on the counter, and that is the set of jobs its happiest owners describe.