I'm at the other end of the spectrum in terms of fit. +4-6 cm in length on sleeves and coat. +4-5 cm rise on trousers. 1-2 cm changes everywhere. I'm tall and skinny, and tough to fit. Despite this, every suit has been better than RTW, and my 3rd was really nice, minimal alterations. And some 0.5-1.0 cm changes for next time. This works.