Venus has always down right by me. I only started ordering from their catalog last year. I tend to order about $1000 worth of clothes and swimsuits so I don't have to keep going back and forth on sizes and style. Conclusion? Their swimsuits are the winner here! The rest is hit and miss as a few of the items are of no better quality than Forever 21. That's why I order in bulk.
And considering their liberal 90 day return policy, in which I have never had an issue receiving a refund, you can be confident if you decide to order in bulk, too.
FYI, I am 5'4,138 lbs, give or take 5 lbs, and a DD on top. Size Small usually fits perfectly. I believe Venus takes into consideration many of their customers tend to be large up top.