Like you, I have used a little goose for years and changed to the Mongoose (3001S-NCS)-- hook/loop NCS (nylon connector system) a few months ago.
Compared to the NCS with the velcro, the buckle strap is much quieter, the velcro on the other hand can adjust easier with or without gloves--compared to finding the closest hole on the buckle, this said, I still prefer the silence of the buckle.
Also the NCS allows the caliper to fall away from the palm of the hand, so contact with the climbing stick (ting, cling) is now a thing of the past.
JMO.