BArnold

I am looking to buy a long arm quilting machine, not sure which one to buy. I use to help my late mother hand quilt as a young girl growing up but now would like to save my fingers and my time by using a long arm.
So, I have just started making my own quilts and have a quilted one with stitch in the stitch stitch, very basic, now would like to venture out into design quilting. I know this is going to be a challenge but I think with the right machine I might be successful. Do any of you have any suggestions, what are the pro and cons. I am looking at the new Tin Lizzie?? Just not sure, HELP????