Personally I'm not a big fan of streaming (for MRV purposes). mainly because I rarely, if ever, watch the entire show at one time.
Is it possible to stream to another unit, pause it, come back later and pick up where the pause left off? (I don't know).
Not to mention I do quite frequently transfer more than one show at a time to my other Tivo's (granted, can only watch one at a time). Plus not sure if the stream can allow a fast-forward either. If done the NetFlix way (only done this on Tivo, mind you) it has some issues with pausing/forwarding in the stream and causes the audio to get out of sync.