Unfortunately, ordering it is not very convenient, since it is not available from major retailers, and only directly from the small manufacturer in VA (made-to-order, involving a 1-4 week delay in delivery). But, if you can get past the idea of waiting a long time for your tarp, you won't be disappointed. The best options with no wait times are the Black Diamond Beta Light and the MSR Twin Sisters.
Check out our Ultralight Tent Review to see how the Grace Tarp compares to all the other shelters tested.
If you want one shelter to do everything we recommend the Hyperlite Mountain Gear Square Flat Tarp, which is lighter, more versatile, and provides more protection in very exposed areas. If you have the cash for the lightest two-person tent with bug protection the ZPacks Hexamid Twin Tent can't be beaten. Or if winter travel is your primary objective consider the Mountain Laurel Designs SuperMid.
While no major changes have taken place in the Grace Tarp Duo, we received this update from Mountain Laurel:
-Mountain Laurel Designs
Our reviewers are currently hard at work testing the new Grace Tarp Duo! Check back in late July for more details!