Congratulations!! Roubaix is very high on my list of bikes I'm planning to test ride today. Keep riding and you will begin to loosen up. We're moving from hybrids to road bikes and I know there will be a period of adjustment, not just for the bike but also for me.
I'm happy to read that hills are easier.... is your Roubaix a double or a triple? I'm planning to get a triple because this area has no shortage of hills.
I like bright colors too, but I happen to think the brushed aluminum color is sleek and beautiful.
Best wishes for many happy miles on your new bike! I'm looking forward to reading more reports and seeing some pics.
Yen