I use my CT 26 for home cleaning all the time. Mind you, you need the 36 mm hose, because the suction is quite a bit lower with the standard 27 mm hose it comes with and can be a disappointment. My brother used it last weekend with the 27mm hose to vacuum the living room, and suffice it to say, he was not impressed.
Suction - I don't know any Dyson vacs, never use any, but other regular home vacs I have used are quite a bit stronger then Festool vacs. I'm talking about a 2200 watt Phillips Barcelona vac, a Numatic Hetty and two Mieles, dunno what type, but they're all stronger. In fact I really dislike the Philips, it's so strong it constantly gets stuck under it's own suction and makes a noise like they opened the gates of heck.
Filters - But my CT 26 by far has the best filters. Most vacs tend to stink the place up with exhaust air and I always have to open a window or a door when cleaning, and then still the room smells bad for the next hour. Not so with the 26, the exhaust air is like new, fresh, like a summer breeze over a Swiss alp. I could breath that all day. [wink]
Noise - Well, I don't see much difference with other vacs actually. The 26 is also a noisy bugger with it's high whining pitch. But when you turn it all the way down, for a small and quick clean up in the night, it works, without waking up the entire neighbourhood.
Mobility - Because of the large capacity compared to home vacs, the CT 26 does get pretty heavy when it's over half full, and combined with its size can be a handfull to get up the stairs. I can handle it fine, but not something you'd let your significant other do.
It is mainly the quality of the filters why I prefer the CT 26 over any other vac I have.