Do you have other road bike for comparison purposes? On the fence between this and SC-R55...
I own a 2018 BMC Roadmachine size 54 and a 2011 Kuota Karma. There is no comparison with the Kuota, whereas compared to the BMC, I can say that, in terms of ride quality, I haven't noticed any significant differences. In fact, I actually prefer the LCR017 because I built it to fit my measurements. The geometry has a slightly longer reach and a lower stack. Surprisingly, I feel more comfortable with the lower stack, which is about 3 cm lower. As for the reach, I compensated by shortening the stem.
The frame I received is of excellent quality, and the assembly went smoothly. The BB on the LCR017 is a T47-68 mm, which threads into the frame and is easy to handle, whereas the BB on the frame you're proposing is a press-fit type, which is a bit trickier to deal with.
I wouldn’t underestimate the issue with the rear hanger. If you do races and need to change wheels quickly, I think it's better to avoid the LC frame. Otherwise, the issue is almost negligible, though personally, it does bother me a bit.