Ha ha! I've just done the very same thing. Looking forward to it. Ready to pick up on the 21st.
So i have had the bike for nearly a week and done 50 miles in total, which is about 4x the amount i normally ride in a week.
My avg speed is about 4kph higher. my avg heartrate is about the same (actually 1 bpm higher on ebike). reaching 15.5 mph is quite easy to get up to and going up inclines is great and alot easier.
after 50 miles it still had 3 out of 5 bars left on battery and range stated 22 miles left in tour mode.
don't know if it is the weight of the bike or not but descending the bike speeds up quicker than expected.
the brakes takes more time to stop but this maybe the increased weight and speed.
only problem i have had is a pain in the top front part of my right leg which im unsure what it is.