I just purchased the Neo 2T and have the same problem as travelerman describes when interfacing with Rouvy. Any gradient over 4-5% is a grind/mash when using their videos. 7-8% gradients, which I handle well on actual roads, are a nightmare. 16-20% gradients, which I handle in a 39x30 with a slow/steady effort in the real world ... well, in Rouvy I struggle just to turn over the cranks. I've reported this problem to Rouvy and am awaiting their response. While I've read that smart trainers offer more resistance than real-world riding, it seems that the level of resistance being encountered using Rouvy is extreme. Also, as another commenter mentioned, I nearly had to abandon a ride due to my inability to turn over the cranks in a 39x30 gear where in the real world this is absolutely never a problem. So something is amiss.