I had a Surface Book 2 WITHOUT the base i.e. just the screen. Best tablet I've ever had. 15" and yet thinner (then) and lighter than an iPad Pro which still doesn't come bigger than 13".
Two useful accessories I had were 'surface connector to USBC' adapter (to mitigat the small battery) and a ring mouse. Scrolling on touchscreen for Windows has been as good as MacBook haptic trackpads, certainly better than most Windows oem trackpads.
There was brief moment in time where Panay was poised with the Surface Book and Surface Studio (just wish they made a monitor version of the studio) to give Apple a run for their money. But they replaced the Surface Book with Surface Laptop studio, devolved the OS with ads and AI and now I'm mainly only on the Mac...