I'm on my third TG and absolutely love it. We vacation on the beach and some of my better family photos were taken in the water with the camera. It is a tank that performs.
Six years ago took my son to the beach for the first time and had a blast with him and the other kids. Lots of great photos. Stupidly, I didn't wrap the camera around my wrist, but put it in my pocket. The Atlantic is unforgiving and it knocked me down and with it my camera escaped. Looking for it was hopeless and I went back to the hotel dejected.
Next day we're on the beach and someone walks up to me and hands me the camera. I jumped up and hugged them so hard. Turns out it washed up four hotels down and they reviewed the photos and found our room number and hotel. They were on the way to drop it off when they saw us on the beach. lol
Now I keep a wrist wrap and a floatie on it. Lesson learned.
I think there are only two lens options, but apparently they are very good, and should be pretty cheap now, since they were a niche offshoot of an already niche (and discontinued) product line.