Meguiar's Interior Car Cleaner - New Car Scent - Protection & Shine - Plastic, Vinyl & Rubber Surfaces - G4216EU, 473ml

Does this leave a matt finish or a shiny finish? All My interior plastics are matt

Can i use this on leather? My seats are leather, i have a leather dashboard, leather armrest and theres leather on the doors

It says Do not let self dry.. but what if you spray mist it on one surface then surely spots might splash elsewhere and stain if you don't notice?

Can anyone recommend a product for gloss/shiny plastics for interior?