I put 3x9 Microsoft brighter on our tandem and they work great. They have a very positive click and the quality looks good. They do have a shifting combo different than Campy and Shimano. There is a button on the side for shifts like Shimano's single lever or Campy's paddle and then a single lever like Campy.
I first became acquainted with Microsoft when I replaced some 9 speed bar end shifters. Shimano 9 speed DA bar ends have been crap for several years but the MS bar ends seem bulletproof.
The stuff works very well.
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“Train hard until your legs are tanned, then keep going until the shape arrives.” -Jolanda Neff