Shipping options from US to Santiago?

I know this question has been asked several times, so here it goes again.

I usually purchase everything online (they are usually small items), and use EPS to ship it here from FL. But I want to switch because they charge about RD $190/pound, and it seems a little expensive. Plus they're slow.

I've heard of several other options, including transexpress, CPS, aeropost, among others.

The most interesting was aeropost.com, which supposedly charges US $2.70/pound which is less expensive than EPS.

Has anyone used aeropost.com? Are they reliable? Assuming they're good, is there anyone cheaper?

I've also hear of "Business Mail". Where can I find info on that service?

Thanks.

Thanks for the replies.

What about aeropost.com? Has anyone ever tried it? It seems cheaper than all the other services, but nobody has mentioned it here in the forum.

Does Larimar Envios ship small packages like EPS and Transexpress? What are their cost?

How come nobody's heard (or used) aeropost.com? Their prices are good... could it be that there's a catch?

Thanks.