Originally Posted by
lsberrios1
Do not, let me emphasize that, DO NOT decide without having tried the roubaix. I love mine and it is absolutely perfect. Sl4 ultegra of course but even the sl3 is an absolute piece of great machinery
I agree with this as a Roubaix SL3 Pro owner. To me the Roubaix SL3 and SL4 are among the best bikes on the planet.
That said, I don't believe any of the top end bikes...Scott or Trek will be worse...just different. So it will depend on your preference OP at the end of the day. For example the geometry is different on each bike. The Domane has a bit quicker steering than the Roubaix. You may or may not like the hinge when hammering out of the saddle.
I will tell you that I have ridden with two guys that ride new Domanes and one is a racer and these guys are VERY fast and love the bike. The bike isn't slowing them down in other words. But the bikes are different so it will depend what you want essentially.