I would like to ask some questions if you do but don't want to say too much in this OP if no-one can help me. 
OK, just to get started:
what make do you have?
what can you make with it? eg types of stitches, types of garments
is it easy to use?
was it easy to learn how to use it?
does it often go wrong?
what are the pros and cons of using a knitting machine?
Thanks.