They are both just pad systems that spray a mist of water onto part of the glass, just enough to dampen the pad slightly, you then polish off using the pad, quality wise they will do an ok job as long as you have enough pads and don't get them too wet.
Now whatever you do don't waste your money on either as they are nothing more than a useless gimmick.
To get the exact same results you will need the Vikan Easyshine pad holder and a Gardiner pole adaptor to attach it to your Gardiner pole, instead of spraying the glass you just spray the pad before raising it up to the glass.
Being able to spray the mist straight onto the glass doesn't save you any time as you still need to extend and lower the pole to
change the pad.
The thing is it will cost you a fortune in pads to do that job so it might be worth getting in contact with Tadgh. I think he has
a pad holder that uses microfiber cloths.