My current fort is still going quite well, currently in the summer of it's 5th year. So far I've only seen goblin ambushers showing up with caravans and my defense forces are more than capable of taking care of them.
I've also found 2 adamantine veins that I'm carefully mining out. The first one only had a fairly small safe mineable area and is almost exhausted, but the second one is pretty big and should provide me with more adamantine than I know what to do with. So far I have adamantine axes of at least fine quality for all 10 of my soldiers, and 2 full suits of nearly masterwork adamantine plate one of which is on my guard captain (who also happens to be a legendary axedwarf with over 60 notable kills to his name :) ).
I've ran into a few problems with hospitals lately, namely a few dwarves who can't seem to be bandaged, but it looks like the next patch should fix a lot of the outstanding hospital issues. The military stuff is also clearly a bit buggy still, but I've managed to find work arounds for most of the problems I've encountered, and my 10 man defense force is coming along nicely in it's training and outfitting.
My main problem now is really that I need more dwarves to pour into my military now, but I've had a number of seasons go by without any new migrants. I think my population currently sits around 75 which is more than enough to do all the work that needs doing... now I just need more people so I can get more nobles to really start expanding.