This does not look unsafe to me, the concerns you have are warranted because you have had a terrible experience. Generally speaking, things like this can be resolved easily, however your tradespeople are unwilling to assist you. It does look to me the clips that attach to the unit itself and then secure to the carcass are not attached correctly, this perhaps was a rushed appliance install without reading the spec sheet. Two things may have happened, either the clips have simply not been fastened properly, or secondly, they have broken in the installers haste. If you o with Fiona_abs suggestion, the company will be held accountable, only it may take awhile. I fear perhaps thats why so many people experience these shonky trades, because resolving issues can seem to hard. Your kitchen is beautiful, and your money as good as anyone else's. I hope you take them to fair trading and force their hand at returning to sort these things out. And when all is said and done, name and shame them! Reputation is everything in this industry, it seems there's so much work out there, they can pick and choose, and treat people badly. Not on. If it all seems to much to deal with, I believe you could still ave the result you want. If so, a local handyman can tell you which of the step it is, and the clips could be sourced from the manufacturer as a spare part. I'm hoping it will be an easy final fix! Good luck

Step one set a budget as that will dictate what can be achieved Step two decide on whether its greenery, opaque or arty. Step three match budget to style and mix in time and you will know what you are going to achieve. Let's start with opaque. The quickest solution. Get your windows tinted with opaque film. Stops the view but let's in the light. If it's greenery then think huge pots full of creepers like jasmine or ivy or clumping bamboo. Screen off the air con unit, attach screen to the fence, place pots strategically and wait a couple of years. If it's arty, paint the fence white, red or yellow, invest in some trompe Leol concepts or hang outdoor sculptures. Arty needs a lot of planning but is great to reflect your style

Unfortunately from personal experience, developers cant be bothered doing any external work properly. It is a field beyond their capability! You should see some form of holes at the bottom of the walls or an agricultural pipe from behind taking the surplus water to a lower point. I doubt whether drainage has been addressed. Considering the height of the overall wall depth, you will need to consider this. Backfill against the walls should also not have been solely dirt. Drainage will need addressing, and the sloppy presentation of the flat areas I.e. uneven ground, before you address planting. THEN you consider the plants to use. Alison

Hardwood is still a great option and will last for decades if maintained. It would still be my first choice. In particular if it does suit the existing house. The new composites like Millboard, Inex, both look good once down. The Inex for example gets stained (or painted) like a standard timber but the product is a bit like a fibre cement so is almost unaffected by moisture. How long will they last.... well they are quite new to the market.....