Are the Breasts As Swollen After an Augmentation Revision As They Were the First Time?

It depends on what is being done.  If it is straightforward removal and replacement in the same pocket, the swelling should be less.  If there is a change of pocket, or extensive pocket dissection, then there may be swelling like you remember.  Best to speak with your board certified plastic surgeon.

revision breast surgery may be less painful, assuming the implants are under the muscle, because the muscles have already been stretched.  The amount of pain to expect does depend on what specifically will be done with the surgery.  if it is a simple implant exchange, you should expect very little discomfort.

If there is not a lot of pocket work the recovery ought to be pretty easy.  For example, if I just open an old scar and swap out implants there is little new raw areas and therefore your recovery is easy.

On the other hand, if there is a capsulectomy, a plane change, or other stuff, it may be some recovery. 

So it really depends on the circumstances about YOU.