Reviewers Liked

  • Nice and comfortable feel
  • Rubberized grip
  • Great battery life
  • Works on most surfaces
  • Darkfield Laser Tracking Technology
  • Logitech Unifying receiver
  • Sculpted, right hand shape
  • Flexible charging system
  • Effortless hyperscrolling through long pages
  • 4 programmable thumb buttons

Reviewers Didn't Like

  • To fully utilize the unifying receiver you need to upgrade your keyboard
  • Too big for small hands
  • Expensive
  • Not designed for lefties
  • Some button quirkiness
  • Tracking not fast enough for gamers
  • Power hungry