Our ESXi hosts (NFS) are setup for VAAI but do not have the NetApp plugin installed. As this would be the first time this has ever been considered here, Im just wondering if its a product people that have had experience with endorse or avoid? I think we've all been promised great things from vendors at some point in time only to find them bug laden or nightmares to manage...
Heres the link to it if its any help.
http://mysupport.netapp.com/NOW/download/software/nfs_plugin_vaai/1.0.21/
I have it installed on all of my hosts and have not had any issues with it. Both features work as expected.
This link shows what features are available based on your environment:
Refer to this article if you get required information here.
Product Documentation - Product Library