Happy? Very. Great pistol for the money. In fact, I've yet to find a better centerfire pistol for under $250.
Yes, seems to have held up quite well for the 350 rounds put through so far. Of course, this is just a drop in the bucket...
Obviously nothing has needed to be replaced.
No way would I go with a more expensive .380, and I used to have a Sig 230 a long time ago. That 230 was the most reliable automatic I've ever had (~1500 rounds at 100%), but I wouldn't buy a new one at twice the price of a T380. IOW, if I were going to spend that much money, it sure as heck wouldn't be on a .380 (unless it's a Seecamp).