TT-ONR-NRN
Veteran Member
They're not that bad! And this is coming from someone that has been on one (I have once anyway!)
Class 455 to Hersham
Yes, once

I sadly had to commute on them five times per week between Waterloo East and Charing Cross, as well as quite a few times between Waterloo East and London Bridge, once between London Cannon St and London Bridge and once between Bromley South and Ashford. They are pretty unpleasant.
456 to Esher