Can't we be trusted to decide what's "barely adequate" for ourselves?
Nope. No backups and no need. I've been bitten by the "sports programming goes black" bug once and lost a Superfan HD game as a result. It's a repeatable, well-known bug and I'm pretty sure it'll be taken care of in due time, hopefully in the next few days.
I can get OTA through my TV's dual ATSC tuners but there's no need. I haven't had any unwatchable recordings, no system hangs or unresponsive UI recording both MPEG2 SD, MPEG2 HD or MPEG4 HD programming. PQ is good to excellent on all my channels including locals and for the few things that have been problematic (CBS HD college football) it's getting better.
Don't need it so I can't really comment on it. If I were deaf or had a deaf family member, or ran a bar where I used it a lot, I can see getting cheesed off about this.
I have a net $-40 invested so that applies to me.
If I start losing my core recordings (for instance CSI, BSG, the college HD football games I record, and the various SD and HD shows my wife watches) I'll call Retention and *****. The fact is that the one recording I've had deleted by my system is part of a very repeatable pattern and I fully expect it get fixed. If the next update doesn't cure it, with all the *****ing about it here and three weeks since the last update, THEN I'll call and complain for some programming credits.
I'm not minimizing people's problems. But what is barely adequate to some is clearly perfect to others and (in my case) pretty good to excellent, assuming I don't start losing NFLST HD games routinely.