drivablity, im a lazy driver on the road
my last saff box broke at 30mph in 5th after coming off the motorway and rolling down a slip road, gave it a bit of throttle and bang oops.
i dont find small turbo escorts slow really, for road use they are ace little cars.
like i said, on the right engine i find the 35 good if its power you want, but i dont see the point running it at 15psi and living with its downsides when a baby gt30 would be a better option at 2 bar, using something like a gt35 to make 370 bhp to me is madness.
its only my opinion

but i generally pick a power level, and then chose the smallest turbocharger that will make it reliably, and ususally that means it will ultimatly be as drivable as possible.