I Replaced Zapier with n8n for 12 Clients — Here's What Actually Happened

I moved 12 small business clients from Zapier to self-hosted n8n in 2025. Total savings: $47,000/year. But it wasn't all sunshine — here's the honest breakdown of what worked, what broke, and what I'd do differently. Why I Even Considered the Switch One of my clients — a real estate agency with 8 agents — was paying $588/month for Zapier. Their workflows? Lead capture from WhatsApp, CRM sync, appointment reminders, and weekly reports. Nothing exotic. When I mapped their actual usage: 12 workflows, ~3,000 tasks/month. On n8n self-hosted? That's $0 in licensing (they already had a VPS at $20/month). The math was too obvious to ignore. The Migration: 3 Patterns That Kept Repeating After migrating 12 clients across industries (real estate, clinics, e-commerce, law firms), I noticed three patterns: Pattern 1: The "Simple" Workflows Were Actually Simple About 60% of workflows were straightforward: webhook trigger → transform data → HTTP request to CRM/WhatsApp. These migrated in under 30 min