1st and 2nd year - yeah I managed to go out about once a week, and worked on Architecture 9-5 every day. I even had time for hobbies, sports every day and socialising at the pub a couple of times a week!
The first half of 3rd year was a little harder - I didn't really go out due to being unproductive the next day, but I rarely stayed up past 11pm.
However, from the January to the May of my 3rd year I pretty much worked constantly from the moment I got up - usually around 7am, until I stopped to sleep - usually around 2am the next morning.
Everybody in my year was the same - our eyes were hanging out of our heads, and we did not see our housemates for longer than it takes to make a cup of tea for several months. Anybody who was not in the same situation had either dropped out by this point, or was having a nervous breakdown and probably didn't pass anyway.
It was a great course though, and the hard work was definately worth it - I can say for sure that there is no degree I would rather have done. Having graduated last July from Part 1, and currently on my year out, I am looking forward to continuing Part 2 this September, although I know it will be even tougher than before.
Yeah the working hours are tough - that's why it's one of the hardest courses not only to get onto, but also to complete, but this just adds to the sense of satisfaction once it's done!