IMO, my TW has only 4 significant short-comings and a ton of little stuff that's easy to upgrade.
I wish it had 4 things from the factory, in this order:
Aluminum rear wheel.
Kick starter (along w/electric).
Steel wheel is ridiculous.
EFI is far superior to carbs.
6-spd. is fun, efficient & faster.
Kicker is obvious.
Strange critters, we T-Dub junkies...some still argue that drum front brakes are just as good as, or maybe even better than, discs!
I wish we had them in rear, too.