My wife has a Big Bear low step, dutch style with front hub with 15Ah battery. We've just returned from a holiday in Cornwall where our longest ride was 36 miles on moderately hilly terain in windy conditions. My wife is no athelete, so she was using power all the way and returned with battery to spare. The front hub motor on these is powerful and will easily pull you up the steepest hills. (Try cycling out of St Ives!) However, it can be a bit 'lively' if the road is greasy or has a loose surface, this is exacerbated by the upright riding position. We mounted one of these to help put some weight over the front wheel, it does seem to help. (Handy for 'phone, water, sweeties, gloves etc.).
http://www.carradice.co.uk/index.php?page_id=product&under=range&url=super-c-handlebar-bag
The bike itself is solid, front suspension forks are OK, if a bit clunky. Gears and brakes are good. It has an NCX suspension seat post, handy if you have a back condition, it works well and has some adjustment for weight. The Tektro tyres are quite large so offer a bit more shock absorbtion.
We ordered the bike on-line and it arrived next day. It took about an hour, being uber careful, to de-crate and put the handle bars in the correct position, that was all the assembly needed.
Woosh were helpful throughout with dimension and geometry info, a pleasure to deal with.
For the price it's a solid bike and the large battery will ensure you still have the range you need as capacity diminishes over the years.
We bought untried, but were replacing a lower powered Giant that had very similar geometry, so we knew we were in the ball park.
Do try some, before parting with the hard earned, to find the frame style and setup that suites you.