Webdav as on-line backup method

My ISP offers a webdav client for a networked Windows drive

[lammert]

After all the discussions on WebmasterWorld about backups, on-line storage etc. I did some investigation about the possibilities. I discovered that recently my current ISP created a new service where the amount of disk space which is default associated with my account cannot only be used to host a website, but also to store on-line data. The data is stored on a redundant disksystem which is backed up on a regular base. The access to this disk space is offered with a small Windows application that emulates a disk and sends all read and write requests to that disk via the internet to my ISP via webdav.

Webdav is an extension to the HTTP protocol that allows for on-line sharing and version control of documents. The ISP has set this up in such a way that the webdav server is accessed via [example.com...] So all data is sent encrypted over the internet.

I know about all the basic problems that can occur with on-line data storage like others on the same (BSD) server looking in your files if access control has not been setup correctly, problems if the storage system fails, problems when the ISP goes bankrupt, but I do not know much about specific issues with the webdav protocol.

Should I give it a try, or is on-line storage via webdav asking for problems?