Iain, I got a 58cm and it fits me perfectly. I changed the stem to a shorter one, but that’s the only modification apart from putting 32c Marathons on instead of the supplied tyres (I wanted mudguards, and the 35c CX tyres were slightly too big).
I’ve done about 100 miles on it this week, and it is such a lovely bike to ride. Yes, it’s heavier than my carbon road bike, but you get used to it. The extra gear at the back (12-30 compared to the 11-28 on the carbon) almost compensates for the additional weight, and means I can get up all the same hills 🙂
Coming from Ultegra on the carbon, I thought the Tiagra groupset would be very clunky, but it’s not at all. After a bit of fettling, it’s fine. I was thinking about changing to 105 at some point, but I don’t think I’ll bother now. Yes, there’s a difference in the shifting, but again, very quick to get used to.
It feels very safe on the crappy Surrey roads, and I have taken a couple of detours down farm tracks and bridleways which it copes well with.
It’s exactly what I wanted from a winter bike. So versatile. No regrets at all.