I purchased a "studio" for just under $11,000. There were three main things that were not acceptable.
1. The down pipes did not fit Australian standards. When I complained they were going to look into it and get back to me. Still waiting.
2. When the building went up you could see daylight through the joins in the prefabricated pieces. The roof was also bowed. There was no flashing on the edges of the roof . The erector came back to rectify the roof and attempt to close the gaps very promptly. No courtesy call to confirm that I was satisfied
3. Each tradesman who came to quote for further work to be done commented that there was not enough structure in the building to line it. When I queried this with Matt's Homes they quoted some building act that this "studio" came under. It was a glorified shed and it was certainly not marketed as such. They then said that if I wanted to use it as a bedroom I had to get council approval. Although we won't be using it as a bedroom it was the first time we had heard of this. It was sold to us as a "studio" which did not require council approval.
I looked at the unlined room and the lined room in the display yard and thought that it just needed to be lined to get to the finished product. Far from it.
After they clarified the act with me I said that it looked like an unfinished room just sitting on the dirt, I was then told that " I got what I paid for".
It has cost me a great deal more than I planned.
With tradesmen commenting negatively and my disappointment I would not be confident to recommend Matt's Homes.

These guys will say whatever you want to hear to get you in.
They will also build a pergola without a permit. They told us most don't go through council. Pretty sure you can lose your licence over this. Didn't sit right with me which began my doubts with us going through any further.
They claim they will help you with getting the permit however have no clue of what they're doing.
They submitted drawings which don't match and missing crucial measurements.
I've asked twice for a plumbers quote which never came. She said she'd set something up however I would then not hear from her. When my husband spoke with them they finally set up an appointment.
When we decided to not use them I emailed my concerns with no response for a week. My husband then spoke with them and they sweet talked him into believing they knew what they were doing.
When we received the document from the building inspector this is when we were just flabbergasted at their incompetence. This spoke about the drawings not matching up and missing measurements. All basic info required we discovered after doing a quick email search .
Beware and be warned. They are clueless.
I believe because we wanted to get permits they had no idea how to help us.
I truly believe they think we will walk away with out getting our deposit back as they've been ignoring our email's.

If you don't want to use permits you'd most likely have no issues.

Very happy with the service and quality of the products at Matt's Homes. We bought a cubby house for my daughter and it is absolutely beautiful - i always wanted one as a child and it is just so delightful to see how gorgeous it looks in our backyard and how much fun she has playing in it. I thought the service was excellent too and appreciated that they could deliver and install. There are many other products at this company too such as bali huts, granny flats and workshop sheds and I have my eye on a couple of things for the future. Will definitely be back. Thanks.

Approximate cost: $1200