The classic trackball mouse belongs to a niche crowd, but after using one, it's hard to go back to the more mainstream point-and-click method of navigation. Logitech has introduced a new wireless trackball solution (via USB adapter) into this underrepresented category of computer mice , the M570...

Good feature set; Solid performance; Comfortable, natural design; Plug and play experience

Scroll wheel and browser buttons placed a little too far forward for tiny hands; Scroll wheel was too resistant

Mouse-like really feel. Wireless connection has been flawless. The storage compartment inside the unit is a wonderful concept. Very comfy. Quite nit-picky factor. The edges are so rounded that I have a challenging time choosing it up when I want to move it off my desk.Really, it's flawless.

Fundamentally, this a good product. It is conceptually sound, however it does throw a curve every now and then. It will seem to be working as expected, and then all of a sudden, it isn't. Then it usually comes back if you can be patient.

I really love the wireless function and that I can tether it to the same Unifier as my wireless keyboard. They work really well when space is at a premium as no mouse pad required. You can actually use it just holding it. The track ball socket picks up dust and dirt but is easy to pop out to clean.

My partner uses this mouse for intensive graphic design, and while she had to replace it after less than a year of use, she's quite happy with both the form factor, and its daily use. You may want to buy a product replacement plan, however, since, as I said, durability has been an issue for us.

A well-rounded trackball for laptop and desktop users alike.

Sure anyone new to it always wonders what it is or how to use it, but I absolutely love it! once you get used to it having your hand stationary, and having it be so reliable is fantastic. downside. you have to clean the guides occasionally as they get dirty.

The Logitech M570 is PERFECTION. I've been using this mouse for some time with my laptop and will recommend this to anyone who wants to buy their last mouse. Quality is outstanding. Comfort and ergonomics are outstanding. Speed, accuracy, action, portability, usability, and feel are all outstanding.

Accurate Tracking; Comfortable Design; Common battery; Durable; Easy To Clean; Easy to install; Easy to set up; Ergonomic; Fast Response; For home or travel; Glides Smoothly; Great Features; Lightweight; Long Battery life; Works On Any Surface; Works on NO surface

Trackballs are great for people who have wrist pain with the normal mouse, and for use on the couch or small table where you may not have room for a mouse pad and regular mouse. It will take just a few hours to get used to it if you have used a mouse your whole life, but it is well worth it to stick...

Easy to install; Very comfortable; nice features; long wireless range; good battery life

no 3d scroll wheel for right/left movement on websites

I bought this mouse back December 2010. It has been used nearly every day as my gaming mouse for WoW, Overwatch, Sims ect... and just now the click buttons are starting to go. As stated by others, just pop out the mouse and clean the sensors once in awhile.