A question to the other OCD cleaning peeps out there. Bunnings has two carpet cleaners out, a Britex unit and a Rug doctor unit. I have a dirty carpet in the granny flat and I have 3 mattresses I'd like to upholstery clean, which unit is stronger, is superior? Is there Any differentiating features to be aware of. I've watched the bunnings short videos, read the blurbs (only had reviews on the Britex unit which were 50/50 on if it was amazing or useless, very polarised reviews. No reviews on the rug doctor) the rental price is the same, the descriptions are nearly identical, whew! Does ANYONE have any input to help me decide which unit to hire?