I have been frustrated with dataflix at times as well (the SCSU series was b-a-d). But l was pretty pleased with last night's performance... very little buffering (twice by my count and only for a few seconds). Of course it was a bit dark but that really didn't bother me. For some reason, there were a lot more negative comments on the dataflix web site last night than usual, but it seemed to be working well.
I'll pay my $99 bucks again next year.