I read your old post and agree. I traveled once in the DD though I got the seat nearest to the door [ which was neither situated downwards or upwards ]. It was just okay for me despite me being fat. I think luggage space could be an issue for some pax.
This was one of 2 last minute alternatives available : [yes, even Gomti Express was full] the other being the more expensive Tejas. This train also isn't always punctual, sometimes reaching beyond midnight. I doubt starting it from ANVT...
more... instead of NDLS helps it's case as well.