Does this need to be connected to phone line and internet?
There is no phone or internet requirement. The box does not have to phone home to Tivo, ever. There are no nag messages. All guide data and software is delivered over satellite.
In order to use pay-per-view, you must have a phone line or internet connection.
In order to use On Demand or Swivel Search, you must have an internet connection.
You can connect directly to a router through the ethernet port, or you can use a DECA to share the same connection as your other receivers use through the Cinema Connection kit.
How responsive is the UI?
How responsive is the remote for Trickplay commands?
I'm withholding judgment until it's been on for 24 hours, just to be fair.
Edited by Stuart Sweet, 09 December 2011 - 05:02 PM.