Choosing software to launch & scale a pool service business — real-world recommendations?

I’m helping operators pick a single software stack (or very small set of tools) to run a pool service company. Looking for first‑hand reports from people who actually use these systems in operations — not vendor blurbs. Please include the name(s) of the product(s) you used and short answers to these points:

- Company context: number of techs, service area, and when you adopted the software.
- Must‑have day‑to‑day features (route scheduling/optimization, mobile checklist, estimates/proposals, invoicing & payments, inventory & chemical tracking, QuickBooks/Xero sync, etc.) — which features mattered most and why.
- Mobile app experience: what technicians liked and disliked (offline use, speed, ease of logging jobs, photos, signatures, chemical calculations).
- Typical monthly costs and pricing model (per tech/vehicle, per location, transaction fees, setup/onboarding, API costs). Call out any hidden or surprising fees.
- Reliability & support: uptime, responsiveness of support, speed of bug fixes or feature requests.
- Migration and vendor‑lock lessons: how you exported/imported customers, prices, service schedules and inventory; how long the migration took; surprises/pitfalls; any vendors that made exports difficult.
- Integrations: how well QuickBooks or Xero sync worked (one‑way vs two‑way, timing issues, mapping gotchas). Any other must-have integrations (payment processors, routing apps, payroll).
- Scalability: at what point you outgrew the tool and what you moved to (if applicable).

If you switched vendors, please describe the before → after and why. If you’re a vendor, label your reply clearly and focus on practical limits and migration support. Short, specific examples and cost ranges are most helpful. Thanks — looking to compile a buyer checklist and migration template for new operators.