- Large, heavy, comfortable in the hand. At first it was somehow strange, then the hand got used to it. Nice softtouch. The horizontal scroll turned out to be needed less often than I thought, but sometimes it helps out. The back and forth buttons, although small, are quite functional. The "spot" on the left is also a button, by default it switches applications like an alt-tab.
- You need to get used to the inertia of the wheel. Often you scroll, switch to something else, and it continues to scroll. For example, I called a browser page, move the cursor to a tab and watch the tabs flicker, because the mouse continues to scroll and the browser starts switching tabs. Or hold down ctrl for a hotkey, and the ongoing scroll turns into a zoom. It is necessary to brake the wheel with your finger. In general, inertia does more harm than good.