This will be a long review so yeah, bear with me :)
First thing first, the Design profile of this trainset. And I swear to god, this train looks sooo good (both from the outside and inside) We booked the 3AC and the interior aesthetics felt so premium! The seats were cozy with better leg space and were way better than the typical LHB coaches.
Second thing would be the acceleration. And yes, this train kinda glides on the wheels. Since it was pitch dark, so I couldn't get a decent video of the acceleration from a standstill. You can literally feel the motorised bogies taking off the entire train so effortlessly.
Third would be the stability and here I've mixed reviews (and this section would be kinda long). And yeah, I might sound blatant but VB Sleeper has tad-bad average stability. Like NOO WAYYY THIS TRAINSET CAN PASS THAT "WATER GLASS" STABILITY TEST. Yesterday night, when the train was moving at 80km/h+, it was shaking so badly that the coach attendant was having a difficult time in pouring the tea. (Maybe poor railway lines in the WB region) In the midnight near the Malda Town, our coach shook so violently, that almost every passenger kind of got scared and woke up, fearing that the train might topple. The coaches were shaking so much that everyone was saying that same thing that "this jerking shouldn't be happening in the first place". In slow speeds, the train feels smooth and stable, but above 60-80km/h, its just an overglorified LHB Rajdhani.
Fourth would be the food, and yes it was veryy good! Like they've improved the dinner quality. Snacks are present and you need to buy it. Morning tea was also served and was included with the ticket.
Fifth would be the bathroom and yes, these are quite high-end bathrooms. The electro pneumatic flush systems were effective and the bathrooms stayed clean throughout the entire ride.
Overall it was a 8.5/10 ride. Worth the money as VB 3AC feels much more premium than the 2AC of a Rajdhani. Would try the 1AC in future. Thanks for reading my rant :)