I rated it highly due to a mix of stiffness and comfort. With the use of their TTC (Tuned Compliance Concept) design and ISC (Integrated Skeleton Concept) that is obviously the intention with the Team Machine as well. One of the real benefits of carbon fibre is the ability (if you know what you are doing) to create varying profiles and fibre layups to control exactly what each part of the tube is expected to see in terms of loads and stresses. Using this knowledge, and no doubt a bit of CAD software, is what the TCC and ISC are all about. Differing carbon fibres, playing about with their alignment and including stepped tube profiles allows a certain amount of 'give' in the vertical plane while keeping things tight in the other direction, in theory that's your comfort sorted. The TCC is found at the fork blades, seatstays and the square section BMC seatpost. this was a part of the review done by road.cc I can’t do it any more justice then this. https://road.cc/content/review/47665-bmc-teammachine-slr01