They are a good trailer. Just like many others out there. I usually shop price and features when buying a trailer. The name means very little. There are smaller companies that built good trailers and large ones that build junk. So it is up to you to look at the trailer you are thinking of buying and make your choice.
Buddy of mine bought a mainline lightly built trailer. It is not very well made but it works great for him as he never has much weight on it. So the cost saving worked well for him.