Its a long time since I ate Kangaroo, when I was in Oz but I dont think it tasted like chicken or rabbit. There was nothing to dislike from what I remember. They also had Buffalo and Ostrich on the barbie at the same time and I found them all to be of good quality and nice textures and flavour.
I have had Ostrich here in the UK since those days and thats very nice, if the price came down it would be a viable alternative to beef for fillet steaks but as its a similar price then I would always buy fillet steak in preference.
Some of the tastiest meals I have had were in a small village in France where they used horse meat. I wonder why we dont eat horse meat here as that was very tasty too.
I suppose that vegetables, once processed into the meat of almost any animal become quite tasty eventually