I am very pleased with the product, the ordering process(which I did online and purchased thru paypal), and even the quickness by which I received it. However putting it together is a whole different story!!! 
  I've been in the aviation industry all my life, over 20 years, and rely upon drawings and work instructions to put things together and test afterwards. This was difficult at best regarding the way the instructions are put together! It took me half the day, almost 6 hours, to put together. Again I love the product and would recommend it, just be ready to spend some before it's ready to use.....