Hotel in Asuncion?

well, tripadivsor is a major source right ?
But in fact, if you are planning a short term rental, not far from the center,  here is a furnished appartment sugestion for you :
http://clasipar.paraguay.com/departamen … 06899.html

and by the way, clasipar is THE online add´s website source in the country, but you can also try this newspaper -> http://www.abc.com.py/

I have stayed there back in 2012 and found the place best value in the city. Did not stay long, bad impression about the country.