I am by no means a fan of DRM, and if I am not mistaken iTunes dropped the DRM in lieu of a better alternative (encoding the purchaser's ID into the song if I remember). I can understand why the service would want DRM, at least at first, as a security for themselves, but having it as WMA-DRM is an absolutely horrible idea. They state on their website:
Can I burn songs I download from Qtrax onto a CD?
No, you will not be able to burn Qtrax music onto a CD. To play songs downloaded from Qtrax you will have to be connected to the Internet and logged in to Qtrax.
Can I put songs that I download onto my iPod/MP3 player?
Yes, you will be able to transfer music onto Windows Media-capable portable devices in the near future.
The fact that you cannot burn songs to CDs is a downside, true, but not detrimental.
If QTrax does follow through with being able to "transfer music onto a Windows Media-capable portable device" that will be a very good thing, but making it Windows Media only is a huge mistake as iPods are the most popular MP3 player.