First off, I am a HUGE Android TV (Google TV) fan and even sang its praises on here recently. I had a Nexus Player (Google's only other directly sold product with Android TV, that I am aware of) and it was awesome. Still to this day the best streaming device and OS I've ever had. It died when millions worldwide died on the same day. That still has never been fully explained, to my knowledge. I've been waiting for Google to release another Android TV device since then. So I bought a Chromecast with Google TV the day it was launched. I have to say I am disappointed thus far. It definitely has the feel of a product that wasn't ready for release.

Issues I can think of:

When I first set it up it would not bring in any of my Google Play TV and Movies content. None. Showed an empty library. Even when I searched for a movie or show I already owned it would try to make me repurchase it. That issue appears to have been fixed a week or so in. Kudos to them for fixing it.

I have lots of casting issues. When I try to cast from the ESPN app on my phone it tells me to select content even though I am actively playing a video in the ESPN app.

Mirror casting from my Samsung phone is useless. It is so choppy and buggy it isn't usable. I can mirror cast to a much lower spec Roku with no issues at all.

Streaming via built in Google TV apps sometimes doesn't work. ESPN app is a good example. It will buffer every 3 or 4 seconds. I can pull up the exact same stream on the exact same network on my phone or Chromebook and it works flawlessly.

There are other issues I have noticed but can't think of them right now.