I Got Vision installed last month and it's been a goodish experience so far had a few lock-ups but that tended to be when i was fiddling with the TV Settings. I have not missed a recording as of yet. I also got it installed free as the other 1/2 works for BT I have it connected via my netgear router and running at 720p on my TV. The on demand stuff is good and never had any problems when watching something.
I must admit i have become used to having it now esp for the series recordings as i have a habit of missing episodes.
done a force update to the new firmware and seems OK for the moment, so it gets a 8/10 for me now they only need to fix the HTTP issues and i will be happy with BTBB
Mikey
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Glasgow