For YOU it might be dissapointing but for me I am happy as hell! I've been waiting for this [censored]!
I think the main thing is....
-Hearthfire itself is good. (save for adoption which looks ridiculously stupid and should never have been allowed to see production, given the lack of quality of the already-existing marriage system)
-Overall content quantity count is very bad.
-There's literally a PC mod that's EXACTLY like this, except free, and has existed for months now.
Usually this type of feature would be bundled up with a larger DLC, in order to make the overall content count larger. But they didn't, they've released it like they did the plug-ins for Oblivion. It's reminiscent of horse armor. I mean, if that undead horse mount were released outside of Dawnguard for $0.99, that'd be seen as a joke too. That's exactly why it was bundled in with Dawnguard.
But here they dropped the ball. People are disappointed because Hearthfire was processed just like Dawnguard was, with them applying for copyright etc. People expected a big DLC equal in size to Dawnguard.
Instead? It's a weenie-sized DLC, and we still see no legal action by Bethesda for a large-sized DLC. So yeah, it's like wtf have they been doing all this time...