Crazy but I love it. How did the eGR setup go? How well does it cope with the extremes of that range? I've been curious about that - 38t and 9-46 seems like the ideal gearing combo for it, given its limitations.
EGR was a breeze to setup. I've tuned 2 ER9 groupsets and not having to deal with an FD just made things easier.
A couple quick comparison between the EGR and ER9:
1. The EGR cage spring is tight ASF. While Shimano GRX gives you adjustability options, LTwoo said f**k it and gave the EGR the highest tension. On the ER9, I think it could have a bit more tension.
2. The RD shifts very fast and precise. No problems. Despite weighing more, I think LTwoo put a faster/stronger motor in the EGR.
3. The new LTwoo brake calipers are nice. One-piece alloy design and even better brake feel. I do have one thing to note. Even though I generally don't like the LTwoo adapter brackets, the one positive about them is that they seem to allow leeway for poorly faced caliper mounts. I've had no issues with brake alignment on 3 of my LTwoo equipped bikes.
4. EGR shift buttons have better haptic feedback. They require slightly more force, while the ER9 shift buttons are prone to accidental presses. Also I think the EGR shift levers are either carbon or some sort of carbon reenforced nylon. My ER9 levers are cold to the touch (alloy) while the EGR levers are not.
5. The EGR RD battery cable port is much more recessed into the RD. I still applied rubber cement (liquid tape) and dielectric grease, but crossing fingers the EGR appears to be more moisture resistant.
I might switch over to a 9-50t cassette and longer chain. Though some have reported less than ideal shifting. Since 46t is the official max size for the RD.