Got a heated version, first run was a bit sore on the back of the legs. Second run was great. I am just back from a trip to Ireland without any problems. I went for the heated options both front and back which I think will make it easier to sell on if I don't buy a GS next time round.
Out of interest, what kind of trousers are you wearing?
I ask because if I am wearing thin textile breeks (HG Master) then my arse gets numb at around 120 miles. Especially on motorways etc. However, if I am wearing leathers, the comfort means it takes up to a tank of petrol's worth before I start feeling uncomfortable. But they are generally all day comfortable (i.e. a darn site more than 200 miles).