We just signed the tender with Kurmond. For the fairness for them up until now, I don't have complains about them, especially Kellyville sales person (Mike) was excellent and worked proactively to make sure all the changes we need in plans to be updated, and also we asked him to include all those changes in the tender which he got his head office to do so without much delays. I paid the tender acceptance fee of $6000 to them last week.
Probably one person or few in their head office might let them down which I didn't significantly experience yet although I feel that they might be not the best in customer services such as responding to an email or even acknowledging a receipt of an email. I honestly hope the company owners will address those issues and identify the people who have become a bottleneck to their company and would address those issues. I am trying to be positive and honest in this process. I am preparing a website/blog to share my building experience which I soon would provide the link here.
What I have learn from my experience is ----
Mike is a sales person so he will be nice and once you've paid $6000 then that's it - Mike would be out of the chapter... There are heaps of other stages and big payments where KH's staffs will give you free of cost stress and frustration with those payments!!
Honestly If you can - you should go and check with another builder (who is fast in processing admin & construction stages) side by side...