I would go with your own opinion. You did the right thing, go into the store and actually use and try out different cameras before making a decision.
From the pictures I have seen taken with the S630 it doesnt look like the camera does that bad of a job; here is a search on Flickr of all photos taken with that camera: Search: Nikon S630 | Flickr
If thats the one you like, then you’ve made your decision.