The LDR3.V25 has been gracing my stereo system for a couple of months or so. I purchased the kit, and it is fairly easy and straight forward to assemble - no cursing, although I do suggest some sort of magnification if your vision is not 20/20. Casework is simple, and strong. Form follows function, and Tortuga does not waste any of the purchaser's money on bling - thank you for that, Morten.
Sound quality? There really isn't much to say - the Tortuga has no sound of it's own. Several reviews, including comments in this forum, have said it all. Feed it from a good source, and to a neutral-sounding amp and competent speakers, and you will hear music as the performer intended you to hear it. After experimenting with several impedance settings, I've left it set at the default 20K. My previous preamp, a thirty-year-old Meitner PA-6i was (and is) excellent in all respects; the Tortuga is significantly better.
The remote control system is proving to be a joy, even better than the excellent remote on the Meitner. It doesn't matter where I point the Apple remote, the Tortuga always recognizes the commands.
System context: Sources are a Korg DS DAC 10R, and a Sony DD turntable with MA electret cartridge (phono pre is Meitner). Amplifier is low-gain (15dB) First Watt F5 clone with 25wpc. Speakers are Martin Logan Source electrostats, which are 90dB efficient. Room is 16' by 24', and seating is 9' from the speakers. I listen with the volume control on the Tortuga in the 50 to 75 range.