WB studios was a cool experience for my daughter and son. Staff very friendly. Not sure it is that much of an upgrade over HP world at Universal Studios in US, and there you also get some amazing rides/roller coasters as well. Feels more like a museum at WB studios. However they do try to upsell you on personalized multimedia experiences during your tour (ie broomstick and train ride green screens) and the prices were ridiculous. The food options are limited if you there go late PM (they close at 8p), so would recommend bringing in your own food or stopping at the half way point back lot cafe between the two studio buildings for some typical amusement park food. Overall I would rate this portion of trip 4 stars out of 5. The completely full EE bus to and from their HQ down street from Victoria Station was less pleasant. Free WiFi only available on way to WB. Driver could never get cabin temperature correct (mostly no air circulating whatsoever) for 90 min outbound and 65 min back to London. Driver tapped brakes incessantly and seemed to be new to driving a bus, making for uncomfortable ride overall. We finished the WB tour in 2.5-3 hours and EE allows for 4 hours, so we basically sat in empty building for an hour waiting to take bus back to London. The overall trip length was closer to 7 hours (as they advertise), when it could probably be done in 5 hours on your own. This part of the experience was 2.5 to 3 stars out of 5.