I have not used the multi-cables but I don't think they're a good idea because I suspect you'll end up abandoning half of the cables in the bundle a few years down the road, and needing to pull some other type of cable.
Running 110 AC in the same bundle and to the same electrical boxes as your low-voltage data/telecom/AV stuff sounds like an invitation to interference.
Unless you're seriously overengineering your electrical system, you're not going to end up with a "home run" configuration between the electrical panel and your outlets/switches/lamps; you'll probably end up with a few outlets or lamps daisy-chained on the same wire run from the circuit breaker. That's fine for 110; but it's not how people wire Ethernet these days, and I would suggest the "home run" or star topology for your data and AV, too, just to maximize flexibility in the future.
I'd also be concerned about combination 110 and low voltage in the same bundle in the event there were some sort of failure/penetration of the bundle - you might end up shorting the 110 right into the low voltage wiring, which would probably be the end of whatever nice equipment you had hooked up to the low voltage (network, phone, CATV) stuff. I wouldn't want to have to turn off electrical circuits because I wanted to monkey with network/speaker wiring - but I wouldn't want to work with knives/diagonal cutters/etc on a cable bundle with live 110 in it, either.
If I were specifying new construction, I'd ask for several home runs of the blue "smurf tube" low voltage conduit to each room - my personal preference is to use Cat 6 for everything (LAN + telephone + CCTV) that doesn't absolutely require coax, but I'm not a big CATV/satellite watcher so my tastes may be relatively unsophisticated in that regard.
I think the most important thing to keep in mind is that it's impossible to anticipate what you'll want/need in the future, and how technology will change, so you should set things up so you can run new cabling without tearing up walls, or being forced to rip out your entire existing installation.