I just have the frameset built with a centuar groupset so can't comment on brakes/gears.
As with all meridas i have ridden, quality is up there with the best. Paint is well finished, carbon inside the headtube neatly finished and everything is perfectly aligned.
The ride is comfortable, making it great for long rides but its not outstanding when it comes to sprints and corner, not saying its bad just not the best.
Overall, I would recommend this frame to any serious road rider but would recommend checking out the newer models as they are better.