Rotary DIY videos
 

Have anyone bought the videos these people make?

http://www.diy-re.co.nz/

Are they any good? Are they detailed enough for someone who have never done anything to an engine before?

The price seemed fair enough, and it won't be a big deal if I can't use them.. But if they are good enough for a complete n00b to use I will buy them in a heartbeat.