Hmmm? I have not used ZWEE.com. I just found this review sight tonight in an attempt to find out if they are legit. Wether it be 'competitors' or not, after reading these reviews, I will be choosing to take my business some place else. It is a little depressing as I have long searched for a high ticket item (Canon 5D MarkII).
I stumbled across ZWEE which had it for about $300-400 cheaper. I called their number and can attest first hand to all those other reviews with the "high volume"message. I called four times only leaving a message on the fourth call. I was slow and precise with leaving my information and call back number. That was a few days ago. I think they should have gotten back to me by now.
One think to think about is customer service. Everyone knows it is EASY to buy something from some company, but when you try to return it... Well? In the case of this company(ZWEE) you can't even get through TOO purchase something. Now imagine you have an issue and have to return it. That thought had been elluded to earlier. I just wanted to reiterate it so you can stop and think about that for yourself.
I will conclude in saying I have not had any dealings with ZWEE other than seing there sight and trying to call them. Based on that lack of response and the numerous negative comments (competitors or not) I am choosing to go another way.