Hello,

I was wondering if anybody has one of these and would like to comment on how useful they are,
or do they get put in a drawer never to see light gain.

If you like them do you have any recommendations of which version to get as they seem fairly expensive for what
they seem to be.
There are 2 brands powerball and nsd powerball is one better than the other?

I have also noticed some have a display and others are self starting.
Are these worthwhile features to get from the outset?

thanks for your time

Martin