I bought 3 different brands of well known Blinds, one was a Double Bull. I can tell you after having and using those blinds which is the only Blind I would buy now. I won't mention any brand names, but I am buying another Double Bull this year. The 2 other brand blinds were sold on Ebay. You really do get what you pay for. While a cheaper made blind may be fine for some and meet their needs. I hunt several days in several states and my Double Bull takes the use and abuse. It didn't take long to see the others would not be up to the task. Sometimes you are better off to spend 30% to 40% more right at the start than end up going through 2 or 3 blinds to find what you want.
A bargain is not always a bargain!

Dan