Awesome! If they're the same quality build as the ones I've been using, you'll be happy for years to come!
As for sharing mics - I use a wired uni-directional mic for myself most of the time, unless I'm singing. Also, I always keep a container of Clorox wipes and I do wipe down my mics, usually discreetly under the table so as not to offend anyone. And of course Purell is always in my gig tote.
I learned all of this sanitary stuff from a book I once read...
