First Triumph? Boy, you picked a whopper!
I've got two of 'em now; my Rocket III Classic Tourer and a Bonnie T100. Both are great bikes in their own regard.
With the big Rock, you'll not find another big cruiser that packs as big a whallop, especially if you do the 'normal' tweaks of exhaust, cat box removal, and air filters. To top that off, it doesn't corner, stop, or otherwise act like a big cruiser, once you're rolling (though you will notice it takes a fair bit of steering effort at speed to get 'er over on the pegs/floorboards).
Certainly can't beat the bang-for-buck! For as powerful as it is, it sure doesn't cost what it should!