I bought an Air Shield Pro nearly ten years ago. I replaced the switch a bit over four years ago but the switch is again beginning to fail. Apart from that, I am finding the fittings a bit floppy despite tightening the nuts up as far as they will go and the head cover & face seal is getting a bit manky. A replacement switch is a bit over £65 which would go a good way towards the cost of a replacement.
I am considering buying a JSP Powercap for £234 and would appreciate the thoughts of anybody who has used both. I know it is a good bit lighter than the Air Shield Pro and looks less cumbersome to use.