I have an Logitech MX Anywhere 2 and I had the newer Logitech MX Anywhere 2S for a day (I temporarily lost my 2, but then found it). I love it and I liked the 2S more (and I'm on a Mac). The scroll wheel has a click to switch between smooth and and notched scrolling. I ignore the small button under the wheel, but it is programmable. It runs forever on a charge (as in months).
I'm not sure why you want the scroll wheel to click, since it has both left and right buttons and the additional button underneath. There are also a pair of side buttons. I would not hesitate to buy another (hence my 2S for a day).