We adopted our dog when he was already a year old. He was (mostly) house trained, and he was crate trained, but his obedience skills could use some work. He only follows about 2 1/2 commands, and only when you have food as a bargaining chip (the two are sit and down, the half is stay, because he will still only do that about half the time even with food as a reward).
He is crazy adorable, and just as sweet as he can be, but he really doesn't grasp the importance of manners. He thinks everyone on the planet exists to play with him and that it is okay, upon meeting someone, to immediately jump up and entice them into a game of tug of war. Some people, as you can imagine, are less than thrilled with this reaction, so we usually put him in the backyard if someone will be coming up to the front door (this is also, in part, due to the fact that he doesn't like it when strangers enter our house, so we have to tell him who is okay).
I think he will really like obedience class. He will get to be around other dogs, which he will love. He will get to be around other people, which he will love. And he lives to please, so he will love being praised for learning all the tricks he is going to learn. He is full of love.
With all my excitement, though, also comes a bit of nervousness. This first class, especially, has a decent chance of being a complete disaster. An epic failure of comic proportions, Marmaduke style.
Wait, whose bright idea was this, anyway?
Oh, wait, it was mine.