If you want a verdict of the B9TL on an able- bodied person look
below.

Name Removed. Taken from another forum.
B9TL Assessment:

Handgrips are good.
Seats are good.
Back is spacious.
Wheelchair support.
Speeds well.

The front piece of glass is far too thick and optically dense?
Looking through it for 15 minutes gives instant headaches, 2
commuters complained.
Ghost bus at night from the front. Svc 21 desto hangs from
nowhere.
To ruin the quiet, are beeping sounds. (signals)
The windows rattle within the first 7 days of service?!
OK, unfortunately the systems were terrifying. Seat count says 33
but up there like only left with 5 - 7 seats.