Quality Bosch bike - a cut above the stuff you are looking at in your other thread.
I've done several 60 mile+ day rides on mine, it rides almost as well as a big wheel bike.
However, supply might be a problem.
AVE have had financial problems in recent years.
They look to be up and running again now, but I'm not aware of anyone in the UK with stock of the latest MH range:
http://translate.google.com/translate?hl=en&sl=de&u=http://www.ave-bikes.de/&prev=search
Mine is the older Bosch motor version, like this one:
http://www.cyclingmadeeasy.co.uk/electric-bikes/ave/ave-mh-7/
Suits me because the battery is the same fit as my other Bosch batteries.
Speaking of which, the UK MH7s were supplied with the smaller 8ah battery.
That will be tight for the wife's 18 mile round trip, if conditions are averse and she's using lots of assistance.
On t'other hand, crank drive bikes have no throttle, they encourage you to pedal more, so can appear to be more economical on battery power.
The MH7 is a semi folder which means the handlebars flop down, as does the saddle, and the pedals fold.
But you are still left with a biggish package, albeit one with not many bits sticking out.