I like them fine on my 550, but I bought the bike with them already on, so I can't say I've ever ridden my bike without them. I've got a 'glass seat though, which lowers me down considerably, and it makes the riding position very "scrunched".
It's cozy for me at 6' tall, and I'm mostly leg.
The brake pedal on my Raasks has a return spring on it.