What's the best CPQ service for software companies?

Hi everyone, I’m evaluating CPQ services for a growing software business. We’re looking for something that can handle subscriptions, renewals, usage-based pricing, and integrations with our CRM and billing tools.

These CPQ services are some of the top-rated options I’ve found so far. If you’ve used any of them in a software or SaaS setting, I’d love to hear how they’ve worked for you.

• Salesforce Revenue Cloud: Built to manage subscriptions and usage-based billing at scale. A strong choice for teams already using Salesforce and looking to automate revenue processes.
• DealHub.io: Designed with software sales in mind. Combines CPQ, contract management, and guided selling to speed up deal cycles.
• HubSpot Sales Hub: Streamlined quoting tools that work well for software companies using HubSpot. Ideal for simpler pricing models and fast-growing teams.
• Experlogix CPQ: Flexible enough to support complex licensing and feature configurations. Best for software companies with customizable product offerings.
• PandaDoc: Useful for quick quote generation and integrated e-signatures. Great for software companies that want document automation along with basic CPQ functionality.

If you’ve scaled any of these tools or compared them in a software sales process, what stood out to you? I’m especially interested in how well they support recurring revenue and integrations.