Yingfa Sharkskin vs. Speedo Fastskin

I've never raced in a technical racing suit before, but would like to give it a try. I see that Yingfa Sharkskin leggings are significantly cheaper than American made technical suits (Speedo, Tyr). Has anyone raced in Yingfa Sharkskin? Will you please provide feedback? I don't expect them to be quite as good as the more expensive suits, but also don't want to regret trading my old lycra brief for Yingfa leggings. For example, I wouldn't race in standard jammers, because they are just longer versions of the same old water logged lycra briefs. Thanks!