Hi Phil,
Congratulations on your purchase, you'll love it 😊 I have a 2019 NX F Sport with all the features you're talking about. I love tech so I don't switch anything off and I don't think any of the features are annoying in any way and they certainly don't keep going off erroneously or anything (unless you have a fault, which I'll come to!!)
1. Yep
2. RSA Works really really well, sometimes a little too well, reading speed limits on the back of vans 😮 otherwise you can pretty much rely on it to tell you the current speed limit accurately.
3. and 4. Adaptive High Beam system, you basically leave the high beam switched on and the car will switch the headlights on when it's dark, dipped until it's both dark enough and you're traveling at over 42mph, when it will switch to high beam. The 42mph limit is frankly a pain as you typically need it on at low speeds too especially down little country lanes. It will then deactivate again at below 30 something mph (can't remember the exact speed but it's lower than the activation speed). If, while on high beam, the car detects headlights or tail lights ahead, it will deactivate the part(s) of the main beam that would blind the driver of that vehicle or vehicles. That's the theory and it largely works very well and cleverly, but sometimes I get flashed and I think it can react a little slowly. Or, the other driver has already flashed thinking you're not going to dip the lights, but do. Not sure. Some say they've seen NXs blind them, so the jury is out. Nevertheless I love it.
5 and 6. LDA, yes it does, a little, it just pulls you back into line a bit, can be a bit irritating sometimes so I tend to leave it off unless I'm on the motorway. Then put it on for safety.
7. Yes, never had it activate so far, thankfully.
The only problem I've had is the front parking sensors, as you may have read in other threads, if you have the problem, they go off erroneously in the rain. THAT'S annoying!
Don't get excited about the Connected Car business, as it really doesn't mean much, you can send a route to your car for the sat nav but if you have Android Auto or Carplay it isn't very useful. The Americans have full remote control but we don't get it unfortunately. 😕
Hope that's of interest, will be interested in your thoughts when you've tried it all out. Enjoy!!
Steve