If I remember the term correctly it is a “needless spray gun”, the most basic airbrush around. This one in your photo is a knock-off of a Badger I have a similar one.
It is probably the first airbrush most people start with, and I assume it is your first airbrush as well.
To answer your question,
Is it any good?I think the best way to answer that is
neither. It is a very basic airbrush and as such can only do what is was designed for, namely spray large areas.
As you use it you will discover its limitations very quickly, one is it does not do detailed work period!
I have a dual action Badger 150 knock-off that does excellent (I am still practicing with it) detail work and still enjoy using my “needless spray gun” for the larger work or to spray undercoat. It is a dream to clean and the tanks fit on my dual action airbrush.
My advise is enjoy it for what it is!