hi, the spiderpen pro is very easy to work with. The thread is very easy to replace if broken. I would say not hard at all to work with. You only just have to get use to how the pen works then your off and floating things. It does cost a lot but if your going to use it well worth it. Check this out from someone on the Cafe. you would be able to do this easy in a day. http://youtu.be/n0__bx8YIeM
It also has a great D.V.D. that comes with it. If you get this and need help with it just shoot me a line. It does cost but like I said if you will use it, its a gold mine.
Want to see a trick.