tahir bhai jazakallah for ur respect.
ali bhai most welcome on pw and specially on car care deatiling" addiction" thread 
may i know what car u have ? its age, color ? what products u using to protect her beauty and if possible day time car pics under direct sun.
rotary is proffesional range detailing tool and very effective in paint correction ( paint cutting ), require differnt specific pads in view of product going to use with that. rotary is bit tricky to control and without experince there is big chance to ruin paint
may i know ur aim to use this polisher ?
tahir bhai mentioned very correct start fromm dual action polisher , its quite safe and fun to use 