It's called Osaka English House (http://www.o-e-h.com/
). It is named so because it is also a small English language school for kids and adults. I picked this place because it houses local college students in addition to foreigners (it's roughly half-and-half) right now). Most, if not all, of the students are studying English, so we go back and forth between languages to help each other practice.
I've not seen any other guest houses, so I can't really compare. I won't make any comments regarding space, as I'm still adjusting to the compact nature of Japan. The place is clean (a housekeeper comes every day to take care of that), there seems to be plenty of bathrooms/toilets, and the staff has been quite helpful.
You can have an internet connection in your room for 3,000 yen a month. I strongly advise that you set up a computer and take advantage of this, as it's surely the cheapest way to keep in touch with people. If you don't bring your own (everyone regrets this), there are PC's and a full-size copy machine that can be utilized on a pay-per-use basis. Also, coin-operated laundry machines and phones are available. You might consider getting a pre-paid mobile phone here, as I've heard that they're quite cost-effective, especially if you're mainly using it to receive calls.
Alright, that's all I've got for now. I'll have to write a blog about guest house living or something, later down the road.