Yes my friends this is true, you can download youtube videos without any problem( no requirement of java in web browser like keepvid). In this website youtube video downloading is very easy, just follow these simple steps-
1- Copy the video URL from youtube.
2- Then paste it into video url bar and click continue.
3- It generates all possible video list.( from lowest video quality to highest video quality)
4- You can download mp3 only if you want by selecting mp3 option and click start.
5- It generates the dowload link.
So you can see it is very easy to use, go ahead and try.