Intex, Polygroup (Summer Escapes) & Best Way are all Chinese pool manufacturers.

=> Intex has established a reputation of terrific value for the dollar, along with fair customer service.

=> Summer Escapes, sold by Walmart & Sams Club, is even cheaper, but has had erratic product quality and even worse customer service. They may be trying to come back -- they've posted a contact phone number again. But if you buy Summer Escapes, I'd recommend that you get the pool installed and running within the week, so you can test it, and return it to Walmart or Sams within the 30 days. If it fails after 30 days, you are likely to be S.O.L.

=> Best Way is newer to the market, and I simply know nothing about how they are doing. They are listing full contact info:
http://bestway-northamerica.com/contact
Bestway (USA) Inc
3249 E. Harbour Drive,
Phoenix, AZ 85034 United States
Tel: 855 838 3888 Fax: 480 838 1888
and their physical location seems reasonable for an importer:
http://goo.gl/maps/d8rOz
BUT, I'd recommend that you know how to return the pool, and who will take it back, BEFORE you buy.

If you do get a Best Way, please post your results, so we can do a better job with the next person who asks.