Sage CRM with Salesforce comparison

Hi, wondering if anyone has performed a User Experience comparison between Sage CRM and SalesForce.

Not so much on the cost ,as SalesForce is more expensive, but more on the User-friendliness ( UX,UI).

I have read comments that using SalesForce in comparison to using Sage CRM is akin to using an 18 wheeler truck to preform grocery home deliveries as opposed to a van, but having gone through quite a few tutorials and walk-throughs on SalesForce, I do not see much difference. 

Perhaps there are some Users out there whom can share some real-life examples?

Thanks