To be fair to Intamin, Stealth is good for a UK coaster. It might not be the best compared to the US, but it's one of the best coasters in the UK in my point of view. The only bad coaster is Colossus as it is getting really rough now when you ride it. If you compare this to the only B&M, it's easy to see Inferno is hardly forceless and it is still really smooth and a great ride. If the smoothness of Inferno and other B&Ms I've ridden is anything to go by, The Swarm should be an epic ride once complete and themed.