I used to breed honey gouramis, so I know them well.
First, what
@Essjay said above is important. There are three different fish sold as honey gouramis now. If you get T. chuna, you have a great fish. If you get one of the other two, have fun. The honey name sounds appealing, and so it was worth slapping on to 2 less desirable fish. Honeys had a repution as very peaceful gouramis. The hybrids and labiosa gouramis didn't. The solution? Marketing.
They're social fish. A real honey male is a stunningly beautiful fish for about half the year, as it goes in and out of breeding moods. Alone, it gives up fast, but in a group, it stays lit up much more. When I raised broods and had a lot of them, the males were in full colour most of the time. In groups, these small fish (the other two are twice the size) do fight, but not to the death. They aren't as bad as pearl gouramis, or labiosa.
They are air breathers, with their inner ear adapted into a breathing organ called a labyrinth. They come from very warm, slow, still water, and their world is the surface, ideally with floating plants. They build bubble nests and the male guards the young.
I would keep them in groups of six, if I were to go back to keeping Asian fish. I like them. They're small, colourful and have complex behaviour. But alone, they are lost in a tank.