Help with grow tent

Was looking at buying Sunlight Sheds Tomato Tent http://www.sunlightsheds.com/The-Tomato-Tent.html and was wondering if anyone has used this or know if it can really do what it says

I'm not an expert, but i pieced two tent systems (not hydro though) for less...

the money dosnt bother me for this item just wondering if anyone has used it or knows if it can really make 2-5 pounds in 70 days

I don't have that one but I do have a Homebox and it's quality construction and will last a few years and solves a lot of problems for the indoor grower.

there is no tent or grow system that will grow you anything. you have to do all the work yourself the equipment will only get you so far. also you could buy all those items separately and save a lot of money. but if you want to know about the parameters of this system, the light is a 400w the average yield is about .5g/w. but lets say you do well and grow 1g/watt that is 400 g which is 14.3 oz, not 2.5 lbs. also the flowering would take 60-70 days but the veg would add some time onto that.

what if i used a 1000w would that help at all??