With only 2Mega Pixels the quality of the recording will be affected by the speed of movement. When using it whilst mountain biking, it can be jerky but when walking the quality is good. Remember that it is a £30 camera, not a Hero. Certainly worth a try.
If you have inserted the card gold contacts facining up towards the lens and used your fingnail to push the card in it should click into place - if it doesn't do this I would suggest that it's faulty and you should make contact with the seller to get it replaced,
This was bought for my son, who lives out in Japan, in March 2012. It was bought together with the Sports Pack and an 8GB card. He is a keen cyclist, so he started by mounting the camera, with the straps in the Sports Pack, onto his cycle helmet to record all his cycling trips. Then he progressed to using it, hand held if required, as a normal camcorder. It must be easy to connect, because he downloads almost all his recordings onto his YouTube account, then we can watch them all here in the UK. He has really raved about his Veho ever since he had it - such a tiny piece of equipment, but the results are absolutely amazing.
I wouldn't recommend that you use this camera, but it depends on how good you want the quality to be. An iphone 4/5 camera would do the job just fine. I would recommend this camera for skiing/snowboarding but not to teach dance lessons. The quality would look pretty poor if you are using a projector.
Yes you just use it like a digital camera. Plug it into a USB port and a file comes up on the desktop and inside are the UVI files that you can lift on to the computer and play back with Quick Time. Couldn't be easier. Of course you don't get top quality video but they are fun and offer a new perspective on life! There is no viewing screen so you don't know what you are taking but again that's part of the fun.