Just cruised for our first time in June (we are straight and married, and aw hell, Republican to boot) and had the BEST time w/ our new gay male friends! They danced w/ me b/c dh is two left feet and no rhythm, and I think they made friends w/ every single group of people they met onboard. We have had other gay couples for friends and despite our other leanings or beliefs, we do not practice HATE or stupidity.
We booked an inside b/c frankly, we only slept and bathed there. The rest of the time we were in the disco, eating or sunning. We avoided the hot tubs and pools due to all the damn kids (June and schools were out). Ultimately, go, be beautiful and have fun!