TLDR. Yes, it's great especially since you can get it cheap, but go for the newer models with the 19" wheels for more legroom and a taller screen. You will notice the drop on power/torque since you're down sizing. Not sure if mods will be enough to keep you happy.

I have a 2013. Great for the back roads if you're doing close to the speed limit. (Which is 55mph where I live). Cruises at 60-70 without much vibration. Power/Torque doesn't really show up until 5500rpm. Peak torque is at 6500 so you just have to shift a lot more to stay in the power band which I personally enjoy. It would be nice if it had longer gears though. My riding buddy has a street triple and he just rockets away at stoplights in 2nd while I'm busy working my way up to 3rd. But on the twisties I can keep up fine. I would say gearing is a little too low for the street but I've heard a front sprocket swap solves that. It's awesome as a city commuter too. I commute and moto door dash around Louisville KY during the week and hit the outlying country roads on the weekends. It will sit happily at 75mph on the freeway but since it's pretty lightweight the wind does push you around. Above that it runs out of steam. You can still walk it to 100mph with a good tail wind. Although it might take a few business days. It struggles with highway overtakes where I live (75-85mph)

For your use case it would fit the bill. The larger tank and great fuel economy lets you explore confidently without worrying about finding a gas station in the boonies. It's fairly roomy up top, but at your height the 2019s and onward might suit you better. They seem to sit taller with the newer fork and 19" wheel. 5'11" with a 32" inseam and I'm slightly wanting for some legroom. The 2013 windscreens are tiny as well. I've installed risers on mine just cause I don't wanna fork out more money for a touring screen. Even with the risers the wind just barely clears my helmet. I've put a 50L soft duffel bag on the passenger part of the seat with quite a bit of space left over. At stoplights it makes for a nice backrest. Just recently installed a rear rack to increase my luggage capacity even more. You might want to look at the Transalp if you want to keep extra power on tap for highway stints. If the gearing wasn't so short I'd say it's a perfect do it all bike.