I installed mine on my RK yesterday, a simple 10 minute job working carefully.
So far so good, it's very easy to read both the tach and the speedo, and the speedo accuracy is spot-on when compared with my GPS.
The backlighting is very bright even in the daytime. The downside to that is at night I get a bit of reflection on my windshield from the orange light, it would be nice if it had a dimming function. No doubt my height (5'7'') is a factor. Taller riders who look over the windshield more wouldn't notice it.
Btw, it's made in India so that might explain the cheaper price. Quality seems very good though.