I'm looking to get a pair of freediving fins, only I am on a VERY limited budget, and I only have 30 or 40 to spend. I saw these fins, and I am wondering if they are any good. I found them for $35, with shipping it comes out to $40, which is right in my price range. Anyways, I just wanted to make sure that if I buy these, I'm getting my money's worth. All other fins that I have found are in the $100's. Way out of my price range.