In theory it sounds nice but in practice I wouldn't choose that option. I have an averaged sized house but by the time I had my mum, bm, myself, you, all the dresses, 2 cats and only a full length mirror upstairs it sounds a bit too stressful for me. I have massive windows in my living room so couldn't just stand and get changed there and even if I didn't I wouldn't want to get changed in front of my mum and bm and wouldn't want to be up and down stairs constantly with every dress. In one shop I tried on over 20 dresses and that was fantastic because it really narrowed the styles I liked down so could you transport that many?
I'd be worrying that I'd need to entertain people with cups of tea etc etc so I just wouldn't enjoy the experience from that angle either. I booked a few appts for the one day so I went into town and blasted the shops in a day and it was good to get it over and down with.
I also find that if people come to the house I feel obliged to order so another reason that it would be a no from me.
Sorry to be so negative but I can't think of any reason I'd choose a home trying on session.
Good luck with whatever you choose to do.

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