If you ask an accomplished chef how to cook something, chances are, he will say “it’s easy”.
If you ask a web designer how difficult it is to update a web site, he will say “it’s easy”.
If you ask the person who created a product how difficult it is to assemble, he will say “it’s easy”.
The thing we have to remember is what might be easy for one person might be very difficult for someone else. If you want me to assemble a product, you will have to be VERY specific (and in my case, it probably still wont work).
When giving directions, assume the person has no knowledge at all and be as specific as possible and it will make things much easier for others.
Have a great day!