Summary: As a graphic designer who uses a Mac all day, I found the Apple Magic Mouse uncomfortable and too prone to accidental swipes, so I wanted a full-size, hi-resolution mouse with wired connection for instant response and zero battery consumption. This HP BR376AA mouse fits the bill perfectly.
Summary: As others have said, it's a good replacement for the Microsoft Intellimouse. I tend to use it mostly for a certain MMORPG and needed a 5 button mouse so I could map the side buttons to do extra things with addons for the game, and it works well for this.
Summary: What can I say. Bought this to replace a defunct wireless mouse that was costing a fortune in batteries. Yes, it's wired, but I no longer have to worry about finding two batteries at crucial moments when I'm trying to work.
Summary: I spent a while looking for a mouse for my laptop, the requirements were... wired (wireless ones just have extra bits to lose and misplace, not mentioning the batteries needed), and being the right size.
Summary: Good value mouse, comfortable to use, smooth and well weighted. I like a mouse with a back button, which I use frequently. Shame it doesn't have a forward button too, but can't complain at this price.