Obstacles:

Communal churches face many obstacles. However, the difference is that Christians living in community can help one another through those obstacles, but Christians not living in community are even worse off.
One of the biggest complaints I hear about living in community is that when people have children their ability to do outreach is severely limited. This makes little sense, since the purpose of living in community is so that our children are raised in the Lord and also so that in raising them we can reach out to the community.
We must shape our outreach around our lives. We are humans just like the rest of the world, but we are regenerate. We must help the world find peace and joy through what makes sense to them. If we help each other fix our houses, coach a basketball or soccer team, organize neighborhood events, provide music lessons, show the benefits of cooperative homeschooling for intellectual purposes, and seek to meet the community’s needs, we will find that living in community is the best way.
Those who do not live in community spend most of their lives driving to and from church events or member’s houses. They live in separate communities so their impact is divided or nonexistent. Times for discipleship and worship are also greatly hindered by the difficulty of finding time for each other.