This is the spec's and I'm pretty sure I have used all of these features and lots of the 163 stitches. I love that you can just touch the button for the fabric type and it adjusts the tension perfectly!
Sapphire 870 Quilt
- Large Graphic Display
 - 163 stitches
 - Pattern re-start and mirror image end to end function
 - 5 alphabets
 - Selective Thread Cutter
 - 20 permanent memories
 - Start/Stop sewing without foot control
 - Electronic Self adjusting Thread Tension
 
 My mega quilter doesn't get at much use as it should but it has tons of features.  I think the reason is it is in my craft room and I prefer to sew in the kitchen.  Just last night my husband said you don't spend any time in there and I replied I like it better downstairs.  I did offer to trade rooms and take over the family room too.....no bite on that one yet : ).  One of the really cool things is it goes FAST and it has a screw on 1/4 inch guide so you can do strip sets super fast and accurate.
My frame is slightly different than this one, it has a pantograph shelf, which I have taken off and does not have the utility shelf underneath. I store my big tubs a fabric underneath and that doesn't get in the way of sewing. I  also added blocks under the legs, because I like to sit on the edge of a stool and FMQ.  
- Sews 1,600 stitches per minute.
 - Extra large working area 9" x 6".
 - Ergonomically designed especially for quilters.
 - Perfect stitches on every fabric thickness thanks to automatic stitch control, thread pre-tension adjustment and adjustable presser foot pressure.
 - The knee lift function lets you keep your hands on your project.
 - Automatic thread cutting with the touch of a button.
 - Industrial full rotary hook system.
 - Electronic speed control for stitch by stitch control and full piercing power at any speed.
 - Quiet, smooth sewing without vibration.
 - Simultaneous bobbin winding while sewing with the separate bobbin winding motor.
 - Built-in sewing ruler in inches and metric.
 - Easily selected sewing speed with the speed control slider.
 - Easy reverse thanks to the large reverse lever.
 - Needle threader.
 - Adjustable stitch length up to 6 mm.
 - Needle Up/Down button.
 - Standard accessories for sewing and quilting included.
 - Optional accessories for specialty sewing and quilting techniques available.
 - Unique utility shelf for additional storage.
 - Multiple Sizes: 60"/120".
 - Smooth, SEAMLESS tracking
 - Engineered for vibration-free quilting
 - Patented Fabri-FastT fabric attachment system
 - Reversible ratchet system for easy quilt advancement and tension control.
 - Bungee Clamps for quick and effective side tension (set of four).
 - Easy step-by-step assembly (DVD included).
 - Leveling feet with 1 �" adjustment.
 - Engineered specifically for quilting - no "off-the-shelf" parts
 - Attachment provided for additional light source.
 
Features and Benefits
Mega Quilter
Next Generation Quilt Frame : Price in our quilting frames catagory
So what kind of machine do you use and what is your favorite feature?  


