-
In the case of your partner, I'd go with a Swytch kit. If they can charge it at work then it's a good solution. It really works well and I arrive at work without having broken a sweat, great as then no need for showers/clothes change etc.
You only need to take off the battery pack to charge that, the rest stays on the bike. Quick release battery removal.
First time fitting mine (retro steel bike and fork) took a couple of hours, as I was being careful, but I think if I wanted to return it to it's former guise without the kit I could comfortably do that in about 20 minutes. Price was around £450 about a year ago.
Partner is moving in & going from a 4 miles each way to 16 mile each way commute and could do with a boost.
I guess there are two broad options, a dedicated ebike or a kit. Other challenges include no access to mains power, the battery needs to come off for charging. They'd prefer to keep their Arkose as a gravel/weekend/touring non-ebike.
Skarper
The not yet released Skarper (https://www.skarper.com) looks perfect on paper but no idea if it'll actually release in 2023, let alone soon. Looks like it'll do 20mph if you are in the USA, wink wink and have a 37 miles range. Is user Chris Hoy on here, hear he quite likes fixie bikes or something.
Swytch
How much aggro is taking off a swytch kit?! would need the MAX but it doesn't even do a there and back (18 mile range), would need charging in the office.
Dedicated bikes
Budget depends on whether we can share it/I can get excited about using it. I'm a bit dissapointed that Omnium stopped making the Mini electric. Otherwise something with the geometry of a 'fast' hybrid or road bike with pannier rack. Open to buying a non-ebike and fitting a 'low' power bafang. Don't need push button, ideally pedal assist.