When you say good amount, what do you mean?
It's a mini bag, so it doesn't fit much. It really depends on the wallet you use in my opinion, because my wallet (MiuMiu long wallet) is huge it takes up 50% of the bag. I sometimes use a card case+coin case instead to have more room in the bag.
Other than that I can fit pretty much all the things I would need out and about (wallet, phone, phone cables&charger, a compact, pen, lip-blam and hand cream, and a soft case for my sunglasses which aren't in the pictures.)
I think an iPad mini would fit, and I've had a moleskin notebook in there in the past too.