Have owned the bike for nearly three weeks before using a break in the incessant rain to take my first ride. Immediately felt the difference with the power on FULL, especially when setting off on a hill. It's almost imperceptible the amount of assistance the electric motor gives; and it takes you by surprise when you realise it's a third quicker than the conventional bike. Sheffield is very hilly and it makes a massive difference; you still need to put some effort in, but my nearly 70 year old heart is much happier!