I think it would be beautiful.

the amount of quilting necessary on any quilt is dependant on the chosen batting- some batts need to be quilted every 2"- others allow up to 10" between quilting lines= you need to check the batting you are using and see what it says in necessary. if using a batt with scrim (like warm & natural) you have plenty of quilting covered- if using hobbs heirloom you would need to add more (it requires quilting every 2") there are many different recommendations....check your packaging

The border that you choose looks great with your beautiful hearts - don't forget to post a pics when it is done.

It looks great!

The old rule of thumb was to place your hand over an area and if your hand does not touch the quilting, then you should do more. Mainly, this area should be less then 4" square or so. They used to judge quilts in this manner. Now it is a different story. If the quilt is going to be on a bed, then the top of the quilt where the hands use it should be quilted more. I hope this helps you to understand. I am planning to make a duvet cover to match my drapes and I think I will make the sides longer and quilt it every 1" or so in rows to help keep it on the bed. (My husband will appreciate this)

I disagree. From what I see in the picture and your description I am not sure there is sufficient quilting in the border. There appears to be a lot of open space in the border area from what I can see in the picture. I recognize the design in the quilting. If there is cross hatching in other areas the border may not have the same density of quilting as those areas. Check and see how much open space there is between the florwers and leaves. An inch is a lot of margin to leave in that wide a border. You might come in from the seam and binding and do a straight line about 1/4" to 1/2" to fill in some space and can adjust the stencil to add some more flowers or leaves as fillers.
Again it is difficult to see in the picture and hopefully I have described it correctly.

It looks great!