I'm a Great Dane lover. I don't think I could ever own another breed without a Dane! <3 Obviously they're not for everybody, but for me, they're just perfect.
I currently don't own a dog, but this was my last Dane girl. I'm hoping once I'm out of this apartment I can get another Dane. Perhaps even in this apartment if the right dog comes around. I'm wanting to adopt a senior Dane mainly because I'm going to need to leave for university out-of-state in about 4 years, unfortunately. (In community college now, going to uni in-state after I complete my associates, then going to vet school.)
This is her about a week after I got her. 11 weeks old, 25 pounds I believe, and just full of an admirable spunk!

This was her a week or two after I got her... She wasn't allowed on furniture unless invited up because I didn't want her recklessly jumping around on the sofa at 120lbs later in life.

I was asleep on the couch, woke up, couldn't move, looked down, and... TA-DA, the girly was asleep on top of me.

Took a picture, then kicked her off!

Finally (so pic over-load doesn't happen

) is her when she was full-grown. Never measured her at the shoulder, but I assume she was around 30 inches, and weighed around 115lbs. She was actually quite small for a Dane.

A quick video showing how well she performed commands;
The video is me giving her hand signals for sit, down, and come. You can turn the volume all the way up to show I didn't say anything.

She wasn't "trained" for anything but new a LOT of commands. She also knew a hand signal and verbal signal for every command.
-Sit
-Stay
-Down
-Wait
-Come
-Go to & get out
-Back up
-Twirl
-Shake (both paws)
-Up
-Off
-Bed
-Crate
-Park it (she had a mat, and wherever it was when we said this she'd go sit/lay on it until released)
There were even more than that.. I could speak to her like a person!

We'd have full conversations because she was taught so many words. I swear that dog was my whole life! LOL!

She also knew cues that were just signals, for example she knew if when I stopped walking she needed to sit, and if I took off with my right leg she should stay there, but if I took off with my left she was to follow.
This last short video is of us playing. I instigated SO many things with her. To clear things up, she did not just attack the vacuum! She's very good and knows when I allow things and when I don't. So if I hadn't started this, she never would've done it.
http://www.youtube.com/watch?v=02GC9vRFYzU
Okay, my 'rant' is now over!
