I never use or know how VirWoX services are but after going through there site they seems to be ok and I will advice you to follow your heart. However, if I were you I will trade with the users that OmegaStarScream recommended while I try VirWox with little fund just to be sure how it works.
If bitcoin ATM is close to you there why not check menapay.  In the mean time why not contact Virwox second email office@virtualworldservices.at