So I heard if you are preparing for a certification you should consider getting prep material from testking.... well I see two companies:
they both offer test prep material, which one is the one that has the best reputation? testkingworld seems to be so affordable.
any other you think is worth considering for citrix and vmware certs.
I tried to find reviews on both but could not find any credible ones. figured many people here are in IT so you may have some valid input. please feel free to share expereice with any other you like.