you should always look at the work of a long-armer before sending her your quilt top- make sure the type of quilting she does is what you like/want- everyone has different ideas of what they like/don't like- and all the different quilters have their own style of quilting. did she do a poor job as in there are puckers/ broken stitches= ect---or is it just not what you like?
if there are actual bad areas---puckers/tucks/ poor stitching areas i would probably consider taking it out (but know that that process is a HUGE process---takes a long time & you risk putting holes in your quilt)
but if there are no such areas & you simply don't like the quilting she chose to do i would not take it out- and show it to others to get some feed back from someone else---maybe you just really expected alot - lay it out & step back---look at it- is it really that bad???