I have ordered from both places. Not so much from A-club on the count of they charge for shipping. Both places basically have the same products. More often than not A-club will come out more expensive.
I have purchased alot of stuff from A-park and have yet to be dissapointed. Shipping time is usually 3-4 weeks which isn't bad.
Apark has the same cadpat uniform that A-club has. My brother and I each ordered a set last summer. Decent quality for the price.