I am thinking of getrting a Cordless Mouse. Are they any good or simply a Gimmick?

Yes they are very good just plug in the adaptor and switch the mouse on and the pc should install required drivers itself and work a treat.
They are much better than corded and one AA battery lasts a very long time in a cordless mouse.

I'm not a fan of cordless mouse's, they need a battery and I keep forgetting to turn it off.

I remember years ago when cordless mice came about, they were then called "hamsters".

Hello Solo,
I use a cordless mouse and keyboard. I love them both.
The batteries last a long time for me but I am not on the computer a lot.
I really think you should try it out.

Yes no problem with my cordless mouse.
I bought a new one about six months ago and it turns itself off if not used for a while which conserves the battery.

Very pleased with it.

Got a cordless Mouse and Keyboard here too, i can sit on my comfy sofa, away from my tower PC, i put the USB receiver at the front portal of my PC, enables me to sit further away than a cord ever could, works fine
Mine is Logitech, other brands are available

Have used them in the past and found they worked perfectly for me at that time .

I got one when they first came on the market, I am a sucker for new products. They worked good when a good connection was made, but mine I had a Microsoft and a Logictech. They lost connections a lot and the batteries would go dead when you least expected it. I get wired mice for nothing from the organization I volunteer at, so spending money for a wireless is not needed. I have gotten so used to the wired mice, I never think to get anything else.

Excellent. Used wireless mouse and key board for years. Find Logitech the best. Batteries last for years, no connection issues.

I just bought a Logitech M330 cordless mouse. Not all mouses/mice are equal. This one has a long battery life and good sensitivity. Sensitivity makes a difference to the accuracy of selecting words or graphic elements (drawing images for instance). All good but the main reason for buying the M330 is the (almost) silent clicks. I can't say why but I prefer not to hear mouse clicks.