Is the GSPro subscription worth it for the course library?

GSPro is $250/year for the full subscription. That gives access to 200+ courses including real courses like Pebble Beach.

For those subscribed:

1. How often do you play the premium courses?
2. Are the free courses good enough?
3. Would you pay for just a few specific courses instead?
4. Any courses that made the subscription worth it alone?

I'm on the free tier now and wondering if the upgrade is worth it.