My advice is to get what YOU want to wear your baby in (although I agree about the colours - we had a red/nougat one and that was unisex enough for DP to wear), and if your DH doesn't like it, he can either be convinced, or he can get one of his own (that HE can research, if he feels that strongly about it!), because HE needs to be comfy with it if he'll use it enough I'm not being tart or facetious, just practical.
We had the loan of a HAB and my aunt bought me (on my request) a Baba-style shoulder sling. It was great to have both because I'd use either one depending on situation, so it can't hurt to have two or more. We moved onto the Ergo at about 5 months and it was used heavily until DS was about 20 months old...then he just wanted to walk everywhere!
Anyway, having an 'arsenal' of slings is a great parenting strategy