I have been living here in Leon, Las Penitas area for a year, openly gay living with my husband, we are Canadian. I can tell you that Nicaragua is very gay friendly. We have been welcomed into the community warmly. When we walk down the street it would seem weird if we didn’t get at least 3 or 4 waves of ola, or as they say here, adio. Having said that, this is not Managua and I would agree with most of what Cecila mentioned about common sense safety.
If you do come let us know and we can show you around Las Penitas and Leon.