Ebay is good to shop around for price comparison, but not for making a descision on a product. Much better to see it in the 'flesh' as chieffy said.
Also, if you are camping or sleeping on your own, have you considered a swag? Much easier to set up - basically just unroll it
- and take up about the same space. Can get a decent one for under 200 with a nice, comfy mattress. I paid $99 for my swag, another $80 for top notch mattress and about $15 on waterproofer agent (spray on stuff) to make it more waterproof. IMO best camping investment evar if your single. I also have a cheapo 2 man tent from a camping disposals store for if I go camping in really cold weather.
EDIT: Just looked at the tent you mentioined on ebay.. I guess your camping with friends/family so swags out
Oztrail have a good enough reputation, BUT my swag is Oztrail, and it too was supposed to be 'waterproof'
... learnt the hard way didn't I... waterproof doesn't nessesarily mean it keeps all the water out, go figure
(I fixed that with additives). I'd still go look at that tent in store first, just to get an idea on size and compare the price (ebay isn't always the cheapest), and when they say 6 man tent, they really mean 3-4 comfortably, 6 is a sardine can.
Hope this helps.