I got a Roku box a few days ago - to replace my Google TV in my living room. The Roku is definitely less powerful, can’t browse the web quite as well - but has been pretty enjoyable. For the things it does, the Roku outperforms. Netflix, Amazon Prime, and Hulu all felt pretty hacked into Google TV, but the Roku gives them a much more solid feel.
TV is a pretty exciting space, looking forward to what’s coming next - seems like it may be one of the next big battlegrounds as we head towards making computers even more ubiquitous.