I've tried jabra & plantronics previously - both went back immediately.  Was happy with both my H850 and H700 until my GF broke both of them so went with the H710 as replacements.  Very pleased.  Improvement in sound quality over the H700 is minimal (I always thought the H700 sounded fine) but there are some serious improvements in functionality.  The volume is finally loud enough on this headset compared to my previous Motos.  The battery check feature is great (flip open, hold both volume keys and see what color the LED is).  Reception is excellent with both her Razr V3 and my BB 8310.  The flip to turn on, off feature is probably my biggest like for the Moto series and only one button to answer, etc. is a no-brainer ergonomic triumph.  It's lightweight, goes in pocket easily with no worries about accidentally turning on, etc.  Oh, and the tones to let you know you've established connection with your phone or diconnected are very nice additions by Motorola on this one.  This is my third H series headset and I really wish I would just quit trying any other brand - they've always been outstanding performers for me.