For me, it's a Yes and an Unsure.
I use to have two OCZ Vertex 2 120GB SSDs. Both failed after several months of use (one in a desktop and the other in a laptop), the first was replaced with another Vertex 2 120GB and the second SSD was replaced with an Agility 3 120GB. I've since sold off the Vertex 2, but the Agility 3 is still in use in my laptop and covered by warranty.
As for the unsure, it is an OCZ Vertex Plus 120GB that I have in an old Netbook and is not listed on that warranty page. This SSD never had a problem.