I have been wearing contact lenses for the past eight years and I love them. A little while ago my optician changed my usual lenses to ciba vision air optix. I was happy with the last ones but they discontinued them but I couldn't be happier with the air optix monthly lenses. I go to my local Tesco optician and buy three months worth at a time; they cost me just over £28. That works out to be under £10 a month which I think is a bargain.
I find them easy to put in and take out, unlike other brands I have tried. When they are in they are very comfortable and I don't even notice that they are there at all. Unlike some of the other reviews on here I don't get any problems with them such as scratching or burning. They keep my eyes moist through out the day as well.
The only thing I do find wrong with them is that as I get towards the end of the month they start to loose their clarity and are a little bit fuzzy. This isn't a big issue as it's not enough to impair my sight and I don't really notice it until I put my new ones in and they are really clear in comparison.