I purchased a STI-R in Australia for my wifes car and must say it is the best RD I have ever owned. I have a custom Whistler that is 10 years old that I will be replacing in my car with the STI-R.
For anyone who wants the best consealed RD on the market this is it.
We only have a single LED visable and a hidden cutoff switch, so the nice display and buttons are very well hidden.