Question about Tamino WebDAV/Non XML Indexer

Hi,
We are developing an application to store Office Documents (.doc and .xls). This App should be able to manage users and versions, locks and search capabilities on Office documents.

a) is Tamino WebDAV Server an stable solution to use in production?
b) Can I use Tamino WebDAV Server and Tamino Non XML Indexer together?

Thanks,
Guillermo