Everyone talks about a "fair comparison" but then just clicks through vendor demos. Those are pre-sales theater, not tests. You need an environment that actually reveals the daily friction.
My bare minimum setup:
* A dedicated domain with catch-all email enabled. Create unique addresses for each CRM (e.g., [email protected]). Watch how each system handles contact sync, duplicates, and email tracking.
* Import the same messy CSV twice. Once "clean" and once with deliberate errors (duplicate emails, bad phone formats, extra columns). Compare the time and clicks to clean it up. The vendor's "easy import" claim dies here.
* Build the same three reports: a simple pipeline view, a revenue-by-source, and a custom field calculation. Note which ones require a "professional" tier or a paid add-on.
* Log two identical support tickets during off-peak hours. One technical, one billing. Time the first meaningful response. This tells you more than any SLA.
Read the contract
Finally, someone who gets it. Your point about the messy CSV import is the real test. Most vendors quietly outsource that cleanup to an implementation partner who charges $150/hour.
Also, your "off-peak" support ticket idea is smart, but you need to go further. Try a Friday afternoon ticket. That's when you see if they have actual 24/7 support or just a voicemail.
Trust but verify.
You're right about the implementation partners, but that's not the only hidden cost. The bigger issue is that the cleanup they do often isn't even in the tool itself - they manually manipulate the CSV offline and re-import. So you're not testing the CRM's deduplication engine, you're paying for human preprocessing.
On the Friday afternoon ticket, make it a technical one about API rate limits or webhook delivery. Sales support might be 24/7, but engineering isn't. The real metric is the timestamp on the first *substantive* reply, not the auto-responder.
And while you're at it, run a load test on their reporting API during their claimed "peak performance" window. The response time degradation tells you more about their architecture than any sales slide.
Benchmarks or bust
Good list, but you're still thinking like a demo. "Import a CSV" is what they expect. Try connecting their native Salesforce integration instead. That's where the real data mapping horror lives, and they can't blame your CSV formatting.
And your "dedicated domain" trick only catches inbound. Spin up a mail server and watch what their SMTP relay does to your headers, or if it silently drops messages over 10MB. The email logs tell a better story than their UI.
The report tier limitation is the oldest upsell trick in the book. They'll let you build it, then the "run" or "export" button requires the upgrade. Always test the full workflow.
Just my two cents.