Any reason this $33.00 water tank won't work?

The one negative that was mentioned a couple of times with the larger tanks is that when filling the owner noticed that the sides bulged a little. They did not say this caused a problem and it was with one of the larger tanks that would be holding more water. So this tank is not as thick as a $200 tank, and thats why its cheaper. However if it has held water properly for all the people who have bought it, then I am thinking it's ok. The only totally negative review came from a guy who said it was damaged during shipping but he said the company took care of it and sent a new one. I guess I am feeling that my trailer is such a money pit that if there is a place I can save a little as long as the tanks work well, then I will. I am hoping someone will chime in who has actually bought them. If not, I guess I may be the least case.

If you are considering the 10 gallon, 7 gallons isn't too far away and way easier to plumb if you dont mind shleping tanks.

I'm actually looking at 16 for fresh and 10 for grey. We only boondock for one night at a time so I am not looking for big capacity. Just the ability to hold some water until we are at a serviced site. We did look at the "two jugs under the sink option" but since we already have a black water tank to deal with, we have decided to have a small grey and a slightly larger water bottle tank as it will hand pump into the toilet and black tank. We will be dumping a tank anyway, so we may as well have both.
In our big jayco trailer we have the oddity of a 90 gallon fresh water tank, which is a feature they added for families. It was a great idea but our grey tank is only 30 gallons so we've had to buy a portable tank to drain it off when we have several days without draining.

No.. (If you mean my jayco trailer), some does go down the black tank for the toilet, but the black tank is 30 gallons and takes forever to fill. (My husband likes the campground bathrooms, and this is an ongoing joke with us, that the only place I will use the bathroom is in my own trailer, and thats the only place he won't use it). But the grey water situation was hilarious when we were newbies with that trailer, and had filled the water up, and then could not figure out why it was backing up into our bathtub. (I probably used 30 gallons in one day!). Now we are much more careful, and we drain off the excess with the portable tank. It is nice to have 90 gallons through, in order to boondocks somewhere for a while. I think even with putting a  sixteen gallon water tank on the Golden Falcon, we will likely have to go and refill the tank if we stay somewhere a few days. 
It will be a good test.. If I get these tanks, I will let everyone know how they work for me. 
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Well Lady. that is a mighty good find. LOL