I specifically created a costco online account so that I can share my dismay at this garbage product. I give zero stars, not one. Firat of all, you need to buy a subscription from google to be able to cast from your mobile devices.

Love Chromecast. It's a tool we use everyday to share videos and music to our TV. It has truly become an indespensible part of our entertainment toolbox.

Google's premium Chromecast quadruples the pixels for double the money, but lacks the bells and whistles of other high-end steaming devices.

Google Cast technology fundamentally works well; Low entry price for 4K HDR streaming; Ethernet and speed boost are welcome improvements

Short on convenience features like private listening; captive portal; and consistent playback controls; Google Home app needs streamlining and easier...

The 2015 update streamlined the design, increased the selection of apps, and gave us faster speeds, making it even better value at ￡30.

4K HDR support; Intuitive and easy to use; Fast and stable streaming; Plenty of content

Lacks Amazon Video app; Lip-syncing issues; Needs constant mains power; Double the price of the standard one

Judged purely on whether it's a good gadget or not, the Chromecast Ultra is a success. It streams well, is simple to use, and is supported by most streaming services (other than Amazon's Instant Video).

Simple to set up; Effortless 4K streaming; Casting Chrome tabs to a TV is handy

Most TVs have in-built 4K streaming; Missing Amazon Instant Video; Expensive

Chromecast Ultra: Cheap and beautifully easy to use, but currently the Chromecast Ultra is largely redundant

Reasonably priced; Optional Ethernet connectivity

Must be plugged into the mains; No support for Amazon Video

Chromecast Ultra is a great 4K TV streamer, but you almost certainly shouldn't buy it – yet

Simple to set up ; Effortless 4K streaming; Casting Chrome tabs to a TV is handy;

Most TVs have in-built 4K streaming; Missing Amazon Instant Video; Expensive;

In "Up the Long Ladder," an otherwise very forgettable episode of Star Trek: The Next Generation, a guest star informs Mr. Worf that "Every moment of pleasure in life has to be purchased by an equal amount of pain." Nowhere is this adage truer than in streaming media players.

Easy to use; Inexpensive; Beautiful 4K HDR streams

Fewer channels than competitors; Lingering bugs; Inelegant design

The first Chromecast was an important product for Google. It came at the perfect time, when TV-based apps were still in their infancy, with TVs operating systems generally being a bit of a mess.

4K and HDR compatible; Casting is easy; Easy to set up

No Amazon Video; Mains adaptor mandatory; Expensive for what it is