Curious about Auto-Renews

At my last company, we offered many SaaS offerings billed in a typical fashion - licenses for "x" years, with or without auto-renew. Since moving into payments, the pricing model is different, but reading some threads here has spurred my curiosity once more about auto-renewing SaaS contracts.

What I'd like to ask the community is:

1. What percentage of your customers are on auto-renewing contracts?
2. What percentage of those customers on auto-renewing contracts KNOW they will auto-renew?
3. How will they be notified before the renewal date?
4. Does your company do enough to notify customers before their auto-renew?
5. How often are your CSMs having to "hold the line" about a contract after an auto-renew is invoiced?
6. Are poorly notified (or otherwise silent) auto-renews happening for SaaS clients with or without the CSM and Sales leadership awareness?
7. Do you think this is a bad practice?