Yes Chris,
I guess there are two schools of thought on that front. Brit Bikes undoubtably have 'personality' but to some (and I may be one of them) that means they aren't always easy to fix up.
Having restored a Honda 400/4 in recent years it was a joy to find small arrows stamped on various parts telling me which parts went together. And, after working on some old Brit Bikes, it was pure joy to take a bolt out and not have the nut fall off the other side.
But my Dad used to run about on a Norton Dominator 99 whilst my uncles were both confirmed Bonnie men. Infact one still has his bike, a '61 Bonnie. I was brought up with the phrase 'Jap Crap' ringing in my ears and to be honest I don't think it's true. Their stuff isn't made to last but hey, I guess that's business 'ain't it?
I'll try and dig out a picture or two of this family's old Brit Bikes and post it here.
Picture Number 1. My Dad on his (mate's) Norton Domi 99. I'm told his had a slightly different reg now and was parked in the background. Apparently they both bought their bikes on the same day.

He's a shot of him fixing up a bike - London late 50's early 60's.

My Uncle on his Bonnie,

My first big bike. I was 18 when I got this Bonnie.

Stuart. M1030M1, Honda NC700S, Grom!, Toyota Corolla 1.4 Turbo Diesel. Favouring MPG over MPH.