Yes, I have dated men with children. Since I am in my 30s, it is hard to find men that do not have children. It is OK with me since I do not want to have my own kids. I figure a man that already has kids will not expect me to provide him with any more children.
I have not had any really terrible problems with dating a man with kids. I did date someone with 4 children once and that was tough. He was pretty much the primary parent in their lives. Their mother was not around nearly as much as she should have been. Honestly, it did ruin the relationship since he never had time to be with me, but it was completely understandable why that was the case. He was a good father and there is nothing wrong with that. Other than that experience, there have been no real issues.