Product review (5 stars): Here is where it went bad (but happy ending)
Do as I say, not as I do.  BEFORE you install your dispenser, READ BELOW and SAVE a LOT OF GRIEF.  Follow the disassembly instructions provided on any of the Youtube videos for Bosch Dishwasher Dispenser replacement.  Disassembly took under five minutes.

Here is where it went bad (but happy ending).  Insertion of the new unit with new gasket/old gasket - makes no difference - was a bear.  I pushed very hard and heard clicks.  All of the bottom clips caught, half of the battle.  Further pushing, pounding, tapping with a hammer would NOT seat the top clips.  Testing with a glass of water confirmed it still leaked on top.  At one point I pushed super hard, and the inner door started to twist and buckle - the BAD part.  I was able to work the thin steel back to a reasonable appearance, and the flange was straight on the side where it meets the seal.  I will have to live with the twisted looking metal near the edge of the door.  Frustrated, and doing this at the end of a long day, I slept on the problem (well, slept on my bed, but gave up for the night).

This morning I got up and did some observation.  As I pushed hard on the top of the dispenser from the inside, the outside (inner door side) showed movement of BOTH the dispenser and the metal flange that captures the plastic clips.  A thought crossed my mind to take a flat bladed screw driver (1/4" or wider) and turn the blade 90 degrees to the metal flange, allowing me to push opposite against the force of my hand trying to install the dispenser.  In other words, dispenser in left hand...screw driver in right hand held up and pushing against metal flange.  After a moment or two of hard pushing on my left, I never heard any clicks, but observed the metal flange had finally caught on the clips.  Just to be sure, I repeated the process on both ends where the clips are.  Pouring water confirmed it was now water tight.

Had I taken the above step prior to the beating, hammering, over-force, my inside door panel would not have the wrinkles mine now does.  It is currently running the test run, but the dispenser popped open to reveal the detergent, so it's a good start.

Oh, and the two black plastic door supports that fall out when removing the skin...one of the videos discusses this.  Easy to replace, hard to describe with words.