I own a good piece now for a few weeks and am now really well with it. Initially the co-ordination of the fingers has been somewhat difficult (you press for focusing the Lensbaby towards camera and can muse in no position fix), have but quickly found out that the best is when you index and middle fingers of the left hand and used the middle finger of the right hand. Then it just takes a little concentration, the right middle finger no longer moves when triggered. This was followed by my hand but has accustomed quickly. From the first trip with the Lensbaby really good snapshots me have succeeded, even with the aperture 2.8 and 4. The aperture changes is easier and faster than I had feared. In addition, the panels are well stored in this removable magnetic thingy device ;-)
All in all a really great toy! I do not want to give my Lensbaby anyway.
A little tip: Especially for cameras with crop factor worth taking a wide-angle converter. I have my Lensbaby Kit bought separately, are included in the wide angle, telephoto and macro converter. This gives you even more creative freedom and especially the macro images are really great!