I purchased TS-103 for my Les Paul Standard 2010 model. This guitar has the circuit board with 300K pots, and since I did not want to make permanent changes, I ordered similar Molex connectors, and swapped the Gibson circuit board with this TS-103, thanks to easyness the solderless connectors this product has. I also ended up replacing the back-cover srews with magnets, so I can easily change the settings without tools.
The 500K pots makes the burst-buckers output a bit "hotter", and I specially like the high-bleed, which gives much more clarity to the sound at the lower volume level. The manual could have had a bit more details explained for different pickup-wrings, but still it was no problem to take the product into use.
Overall this is nice product for this price, and makes it really easy to test out different configurations, that can be done separately for neck and bridge pickups.
The support and communication for this product was very good, when I had some questions about the TS-103.
This eurorack module is simple but very powerful. It can be the right project to start learning how to build a DIY modular synth. The module provides three saw tooth oscillators that can be controlled in frequency using knobs. Moreover it provides a fourth knob to change the amount of distortion. This is very suitable to start creating drone music!!!