Above is the refined chair after I had taken care of some of the minor faults.
And then here are some of the flaws from the old chair.
So I am going to avoid having unseen faces as it makes the image more complicated than it has to be and would also create problems if I were going animate or bend the object.
Whereas here the problem here is that I wasn't connecting edges together however I was only connecting the edges where I needed them which lead to my edges looking really messy and my hidden edges to be completely messed up. Which although it didn't make too much of a mess for the chair, however were I to have a curved object then the object would be completely ruined.