This is an amazing microphone for the price. I've been using them for years in situations where I don't want to risk expensive equipment and they have never let me down.
A few important points after reading the other reviews.... they are not really designed to be used for Skype-type applications so don't expect them to be great at that. The clip is fine if you slide it on from the back of the mic. If you force it on from the side the strain will eventually break the plastic so treat them carefully.
A very important point I've just discovered is that the design has recently changed slightly. They used to come with a mono plug which was fine except that it meant you'd only get sound on one channel of a stereo recorder. No real problem as it's obviously a mono mic and you can always sort it out while editing. The new ones have a stereo plug which gives you the same signal on both channels. Good in that there's slightly less fiddling during the edit BUT, for some reason it won't work with some video cameras, for example the Panasonic SD900! They produce a LOT of electronic noise which makes them unusable. I've tried two of them and they both have the same effect. I bought the Hama equivalent microphone, which still has the mono plug, and that works fine. I haven't had a chance to look into it further but just be aware that these mics may not work with your piece of equipment.