C.M.
I'm assuming that they're not far from the Parent's Choice brand diapers (Sams club is part of walmart isn't it? Just a bulk store I think.) and I've tried those. The PC brand really isn't bad at all. I did have to change a bit more often, maybe to the tune of an extra diaper per day, because I noticed that that infamous pee smell you get with some cheaper diapers would show up. Overall not bad though.
Someone mentioned Target diapers- Love 'em! We got those religiously until we moved and I've had to try to find alternatives since we do not have a Target within driving distance anymore. LUVS are great too if you haven't tried those, they've got a bit of a baby powder scent and are super thin.