Leupold 1" Quick-Release rings and bases on a model 10/12?

Anyone out there a fan of these? Give me the good, bad, and the ugly. I recently came into four sets of these rings, free, due to a mixup at Leupold. They sent them to me accidentally, and after I contacted them about this mystery package that showed up at my door, they graciously told me to keep them. So kudos to them!
The bases for these for a Savage 10/110, however, run $50-60 depending on the source and availability. I have one set on order. Anxious to try them out, as they seem to be a good choice for hunting guns. I normally use Picatinny style mounts and rings, but they are heavy and bulky. These would be lighter and trimmer, but still easily removable. Are they as good as they claim?
BTW, don't misconstrue this post as an offer to sell because it's not.