I'd like one of the 12 inch machines just for fun. I'm fairly certain it would be fine for most of my home use.
For the moment they both just sit on the charging stand, one is originally from Canada, so has a French/Canadian keyboard on it. Its not an issue, just sometimes with touch typing I press the wrong keys. This one I bought over the weekend is mint, proper local English keyboard, it just didn't come with a battery. Being a 1,1 I put the 2gb of RAM from the 2,1 into it, and its got a 500gb drive in it, which i'll swap out for an SSD (like I did with the 2,1), BUT, it didn't come with a battery, so I put the battery from the 2,1 into the 1,1 and i'll buy another from OWC..... I use it every now and again for couch surfing, but it won't get much use. It was just too good to pass up while I walked past.
I gave mine to my kid's older Mac laptop died. I really loved the size and look of it. I seemed to run a little slow just surfing compared to my 10.5 iPad. Heck, if I found one on sale I'd bring one home.
I'll throw an SSD in it, and I've maxed the RAM in it, but yeah, just for couch surfing its fine, even though some websites complain that the browser is too old.