Just wanted to echo some of the OP's points. I already ran DS2500 pads, braided lines and RBF 600, so the real change for me was to the DBA T2s from what I think we're the PO's OEM discs.
This combo of pad, lines, discs and fluid has been a great real world driving experience the first 500+ miles, including my first spin round the Evo Triangle. I have a bit of squeal at low speeds also (which disappeared last time I had these pads fitted), the braking is very progressive, which at first was about weird but, once I settled into them, provides a good deal of control and ultimately stopping power if you really get on them.
Great for fast road, not tracked them yet but have no reason to believe they won't be an improvement over my last track day on the old setup.
Thanks to Clark Motorsport for supplying them
PS - not a big consideration for brakes I know, but the discs look much better (particularly the painted hats) than before