The manually adjustable Agata capper (the one with the black button in the capping head) is what I prefer. Tried the auto-adjusting version and it just seemed to involve more awkward motions during a bottling run.
My capper is mounted to a heavy poly cutting board, and my work space is the top of our clothes washing machine...it's right next to the beer fridge with beer and gas lines all ready to go for keg and BeerGun connections. Works just as fine for bottling primed beers. Spills run into the washer. Cleanup is a breeze.
The capper mounts to the board with four metal "mirror clips" I found at Home Depot. The clips screw into the board, and the offset end of the clips holds the capper base securely to the board, letting me mount and dismount the capper almost instantly instead of screwing it directly onto the board.
This capper has done probably a couple thousand bottles. I have marked the side of the shaft with lines for each of the different sized bottles I use. Super simple and easier to use (for me) than the self-adjuster.