You do need a little power for that climb at221, and it's mainly the eZee models that are powerful. There's been a trend by many manufacturers towards satisfying the large and all important Dutch market where the flat country suits low power and long range.
The powerful options left are some older designs like the Currie Electrodrive side rear wheel motor and the expensive Heinzmann, with only the eZee models and some expensive imports from the USA being up to date designs benefiting from newer technology.
The lower powered bikes will climb the 8/10% ok, but of course you will be doing more of the work to achieve that, so the performance will depend more on you.
So I still favour the Quando/Liv options. To help with that choice, the Liv has a powerful and proven but older design brush motor. It's a "proper" bike to cycle with a three speed hub.
The Quando is bang up to date with an extremely powerful Hall effect motor which does nearly all the work for you. It is a folder though, with narrow handlebars, albeit still a full bike length, and has only a single 70" gear. That means it's most comfortable to pedal at 9 to 13 mph. At slower speeds you'll be giving the pedal assist at a very slow turn rate (cadence), though it's rarely necessary to go slower than 9 mph due to the power.
At higher speeds you'll be spinning the pedals quite fast, about 15 mph being about the limit without looking like you're using an exerciser.
Again, it's so capable that you will probably be happy for it to waft you along at 13/14 mph when there's a slight upslope or headwind. At other times it will be carrying you along at 15 to 17 mph. Makes you feel quite smug when other cyclists are encountered in adverse conditions. Safe too, since a cyclist who doesn't pedal seems to fascinate car drivers, little risk of them ignoring or hitting you when they are slowing down to look at the bike.
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