Just bought a checkpoint sl5 ( week old ) and upgraded the tyres to bontrager cr1 40mm and I’m loving it . I had a trek Boone 5 before and I do like treks coupler system , it takes the sting out of the trail . I feel in the short time I’ve had it I could really start to enjoy longer distances on the comfort side of things . In the Chilterns, where it will be ridden most I feel it’s the perfect bike 🙂