I also have limited space and so decided to go with a flock of bantams because I liked the idea of having a bunch of birds instead of only a few standard size. The eggs are perfectly usable, you can make a great egg and cheese bagel with three or four of them.
There are only two of us and I haven't been short on eggs since the girls started laying. In fact, I had to pickle a bunch before winter and those made great snacks when production started going down when the days got really short. In November I was getting over 60 eggs a week from a flock of 10-11. It went down to 20-30 per week in Feb but is picking up again now even though I have an endless line of broodies going into the buster.
My new chicks are 2 weeks old and I'm so excited to have 8 different varieties in my little urban farm flock.
Hope this helps!