This thing is amazing... just ridden up to the highest point around... it makes climbing so quick and doable... quite easy to sustain 10mph on really tough gradients. I can also maintain a constant 30mph pretty easily on the flat with the 25 km/h limit switched off...
Motor is very torquey so the mega wide range cassette is not neccesary. Actually it seems to have more power at low cadence, so it doesn't match my legs, but instead means that it's easier to "cruise" along at lower rpm. Also helpful for starting in too high a gear. I'm tempted to fit a close ratio block instead but it crossed my mind that in the event of battery failure in a hilly area it might be a godsend.
So far I've had 11 miles on one charge over very hilly terrain and with mostly full assist. I will update when the battery goes flat!
Load sensing works really well, just a tiny delay once you lean on the cranks, and it cuts out as soon as you ease off. Pretty natural feeling, especially at the lower assist settings, and lots of fun at full power.
The P7 build worked out really well. The On One forks feel great, the bars are also really nice (very stiff feeling for a swept bar - the brace at the front definitely does something) and the whole is super stable, quick and tough feeling. Pleased with the tyre choice too. All in all it's a good compromise for a go-anywhere setup. I'm in two minds about what to do with the brakes, discs would be an upgrade but I'd prefer to avoid hydraulics for ease of maintenance and I'm not entirely convinced by cable driven discs...
I went up to a favourite muddy, gravelly green lane this morning and wanted to blast it along there. Only the battery mount stopped me... would be real fun off road.