We haven't purchased them in a very long time and have been primarily shipping Grandstreams.
There is nothing wrong with the Linksys devices, but we started buying exclusively Grandstream for two reasons.
1) Financial - Linksys priced themselves right out of the market and they devices such as the PAP2 are priced so high that it don't make sense from a financial standpoint for budget providers to purchase them. Once Cisco took over, they stopped discounting except at extremely high quantities (tens of thousands of units per purchase). Grandstream prices their devices appropriately.
2) Router - Grandstream HT502s offer a built in router. 99.99999999999999% of all problems that customers experience are caused by customer routers. Assuming the customer doesn't have a modem/router combo unit, having a device that can be connected directly to their modem and therefore bypassing the customer router entirely drastically cuts down on service issues and simples support. There's also a segment of customers that doesn't have a router and only has a single port available on their modem so they have no where to plug in the device normally, but with the HT502 the built in router is there to solve the issue.
Again, the PAP2s have no issues...the Grandstream devices just make more sense for the above reasons. We still have thousands of PAP2s out and ship them right by out when they come in from cancellations.
Bookmarks