advice on specific pools I'm considering

I was just looking at a couple of pools that look like a great deal, but I can't find ANY info on these pools. Can anyone give me info on these pools as to quality and value?

http://www.poolsupplies.com/pools/th...round-pool.asp

http://discountpooldepot.stores.yaho...vabgrounk.html


I'm looking at the 18x33 and 18x40 ovals...


I'm just looking for any info as to the quality of these pools... Warranty, construction, etc... maybe some advice as to whether or not you guys would consider any of these for your yard..

Thanks in advance!

A little update... the J5000 (1st link) is an atlantic pool, and it's also known as the Vantage. Their website is here:

http://www.atlanticpoolproducts.com/....asp?ProdID=72

I called and they told me their warranty is different based on the distributor.. the distributor can give a pro-rated warranty of up to 25 years... Is this good or bad? (obviously it's bad if your particular distributor only offers a 5 year warranty..)