But while it can do some things an Apple TV can't do, it's not perfect. You must charge the dongle as the host device doesn't provide it with enough power. Ideally you'd be able to do that via the receiver, which has a cradle for it, but that cradle doesn't include a power connector. Instead you power it via the included USB cable attached to a power source such as an iOS power adapter. The dongle is a little large and ungainly, which can lead to you bumping and disconnecting it. Also, although the Bigstream offers three different channels, it's still subject to interference. The TV is my office is surrounded by other gadgets including a broadband modem, wireless router, Apple TV, and any number of AV devices. I saw a lot of flicker when the receiver sat next to my TV. If I pulled it as far as possible from my other gear, the flickering stopped. It's regrettable that it's not better shielded.

And finally, there's the question of how much you're willing to pay for a wireless solution. For $39 you can purchase Apple's , which does nearly everything the Bigstream does without interference or the need for additional power. What the Bigstream adds is the ability to have your device across the room rather than tethered to your TV or projector. For doing presentations this is worthwhile, but for situations where you're simply going to press Play and watch, I'm not convinced that the Bigstream is a particular value--particularly when for that same $39 you could purchase Apple's and present a better-looking picture.

Your decision to purchase the Bigstream depends on very specific needs and your ability to overlook some faults. If you can't do whatever it is you want to do with one of Apple's AV cables or an Apple TV, can put up with a composite video connection, are willing to be watchful of interference, and don't mind a largish dongle that require recharging, the Bigstream might suit you. Me? Not so much.