Let me say first of all thank you so much creating this great plugin. I have been working on a complex site for the last six months and this is literally the last piece of the jigsaw - I actually let out a small yelp of joy when I found it!
The one problem I have encountered is that when I add an image to the field all is well but and it shows up in the post. Great! However, when I tick 'remove' and update the post the image appears to be gone from the field but it still appears in the post, i.e. it hasn't been fully removed and is still attached.