Look for seamless connections to accounting platforms, calendars, CRMs, and payment processors. Calendar sync can suggest billable lines automatically. A CRM link can tag invoices to deals and projects. When integrations remove duplicate entry, you win back hours and watch error rates and rework fall dramatically and predictably.
Enterprise clients will ask about encryption, data residency, access controls, and certifications. Choose vendors with SOC 2 Type II, role-based permissions, and clear retention policies. You gain peace of mind and a sales advantage, demonstrating stewardship of sensitive information without writing a single custom security document yourself.