Hi Shamone, I came from a CBF1000 MK2 (great underated bike) which I had from new for 1 year, then moved onto a Triumph Explorer which I kept for 1 year, now I'm on my superb GS-LC Standard Height, which I've owned for 6 months.
I have done European Tours on all 3 of these lovely bikes!
You are going to absolutely love the GS-LC it is the best of both worlds (all worlds) it is a much better tourer that the CBF1000, it is much more capable with much longer legs than the biffer. When I say longer legs I don't mean 'taller' I mean it covers long distances with ease, it strides along the motorways and gallops up the distances without effort and when you get into tight twisties like alpine passes, it's the most fun that you can have with your clothes on, totally brilliant and IMHO beats the Triumph hands down.
As for the height you are the same dimensions as me, and I shied away from the buying the aircooled GS because of it's height when I tried it, so I bought the Explorer instead, but the new GS-LC feels like a baby after my Triumph, and it is a smaller bike than the aircooled GS, it's very well balanced and very chuckable.
With the missus on you can drop the height if you need to at the touch of a button, put it on '1-helmet' mode (not whilst on the move) and the bike becomes quite a bit lower if you have a pillion, more so with luggage.
I was going to go for the lowered bike but Ryan at Pidcocks strongly suggested that I should buy the standard bike with the lowered seat if necessary, his advice was bang-on and I'm pleased that I took it. I think that you will be fine on the standard bike but try them both, at least twice with your pillion, and then make your choice....you can't make a bad call, low or high both great bikes!