I looked at the Bickerton to replace my Dahon Matrix when it snapped, but it looked to be a rebadged Tern. And while I know Tern isn't Dahon, the association and family connection put me off a bit.
I still preferred the look of the Bickerton to the Tern, but in the end decided it was time to stop messing about with full size folders and actually get a Brompton.
But to that end, Tern do full size folders.Including the Tern Joe (what I think the Bickerton actually is under the blue paint):
https://www.tredz.co.uk/.Tern-Joe-C21-26-2017-Folding-Bike_105862.htm
What will you be using it for? I only ask as I looked at the Montague Swiss Mountain Bike which uses the same fold as the one you're looking at and to make it fold, you have to take the front wheel out.
I see a guy on my train with a Montague and I'm pleased I discounted it, as I wouldn't much fancy taking the front wheel off twice a day when it's wet.
Others include the Airnimal - which might be an option for you as IIRC you have a longer journey where you want to go quickly. But that suffers from the same problem as the Montague in that to fold it, you have to take the front wheel off.
It is strange though how different people react to different bikes. I think I'm faster now on my Brompton than I ever was on my Dahon - or at least I'm certainly no slower. Horses for courses I guess, but i wish I'd made the move to Brompton years before I did. It's just so much better for me.