I watched about half of it (that was more than enough) and it was exactly as I expected it to be: really, really daggy, cringeworthy, and poorly produced. If I was actually interested in the property I'd be embarrassed to have anything to do with it. It would put me off.
From an advertising and marketing point of view (my field of expertise) it doesn't make any sense unless you are marketing to a very specific and very narrow target audience (cashed up boganish 18 to 25 year olds who are into rap and/or might appreciate the bad humour)
My question is: is the video about selling the property and getting a better result for the vendor or is it really a shameless self-promotional **** by the in-poor-taste agent?