Time Trial Helmet

I'm getting excited to get my time trial bike out soon and am looking at buying a time trial helmet. I'm decided to look into the Las Cronometor helmet and am still debating if I should look at the Giro Advantage 2. I like the intergrated lens on the Las, but like the adjustment on the Giro. Its a huge pain not having dealers in the area that carry the helmets, so I will have to go off online reviews. I'm leaning more towards to Las, but let me know what you think.