Two years ago, went down to Croatia two up with top box and panniers, and the bike crusied happily at a GPS 80mph, went up the Grossglockner and Vrisic passes, all with no problems and never feeling it was underpowered.
Last year went down to the French Alps two up with the same luggage and only for about 30 seconds would I have liked some more power when a local in a turbo car didn't want to be overtaken at 5000', and climbing up a fairly steep climb. We still got past it though
On country roads it has enough, sure you'll get more of a buzz if it had 150bhp, but then you'll probably need all the traction controls / power modes that seems to come with that power. And, how often does anyone have the throttle fully open in any gear below 4th? Not very often I'd guess, in which case you don't really need any extra power. The extra power does make for a lazier ride as you could just opn the throttle on the 150bhp rocket ship and accelerate fastly, where the Glee etc might need a change down of gear to get similar acceleration.
Might be worthwhile test riding the new litre v-strom to see if it matches your needs / ability.