The LHT is a tank. Its comfortable, it handles well, and it is very utilitarian. But make no mistake about it....it is a tank. It gets its name Long Haul TRUCKER for a reason and I am reminded of this everytime I ride mine. It really is a tractor among bikes. I ride my LHT when conditions are poor (snow or bad road), and/or if I need to carry a load and when riding rail-trails with the kids at an average pace of 6mph. Otherwise, I'm on a different bike. If agility and speed factor into your concept of fun then the LHT is not for you.
Now, I have 6 other bikes, so my LHT is really only ridden when absolutely necessary....and I do love it for its functionality. But if I had to ride the same bike everyday, and only occasionally burdened with a heavy load, I'd choose something a little more in-between, like a cross-check...somewhat sporty, but still reasonably utilitarian.