Let me start with, the build quality and general feel are excellent for this phone. And as per Motorola quirkyness it has a somewat off beat design. Call quality and reception are fairly good.
If your not a to demanding Android user this phone might just fit the bill.
Resason for me it has only 2 stars, Motorola's Lack off software upgrades, (As i write this phone has no v2.2 froyo) And thus can't move app's from it's rather tiny phone storage space to the Memory card.
I would suggest, look at HTC or Samsung first before you deside to buy this phone.
It is now known that the XT720 will NOT be updated to Android v2.2, Very poor performance from Motorola there as the phone is only released for 6 months.
Motorola does promise to update other phones, Milestone and the Defy for example although Motorola said the same for the XT720 If you do consider buying a Motorola be warned that the update policy of Motorola can bite you........