If you don't mind the look, the one piece seats of the 2004 and newer F4i's are nicely padded and very comfortable. I spent about 8-9 hours sitting on that kind of seat on a few rides before without any soreness at all.
It really depends on how the bike fits you specifically but I don't think it's too upright at all.
It really depends on how the bike fits you specifically but I don't think it's too upright at all.
That's probably the same for any inline 4.