What do you think of having 5 kids?

My hubby and I have agreed on 3 children for now but would love 5 total. We are working on baby number 2. I basically want suggestions from people with large families and people that would love large families. I would really appreciate it if the negative feedback was kept to oneself. I'm 21 and my hubby is 28. we have a 21 month old daughter Andrea. I am well aware of the financial burden, as well as educational needs for my children. Once we reach 3 we are going to re-evaluate our situation and see if our goals are realistic.