I own a M3P for a week now. I have no comparison to the old version since I switched from a combustion car. So the change was extremely big for me. But, after a week I am very happy with almost everything, including the differnt indicator use. A friend of mine has an old Tesla M3P, I never drove it by mayself. But just from the apperance and the feeling inside the car it is a huge improvement.
I'm 62 and got my first (RWD) Ultra Red Tesla a week ago. Over here the white colour is 'free', red and grey are €2000 extra, blue and black €1300. My Tesla includes basic floor mats and over here a front and a back plate are always included and installed. The RWD (in white) costs €41990 (tax included) and we get a €2950 refund from the government (on the RWD only). I live in the Netherlands and we get the Shanghai Model 3's which are said to have the best build quality. About the steering wheel: it took me about 5 seconds to get used to having no stalks and having the gear changer on the screen is perfect for me. The only thing about having no stalks I have to get used to are roundabouts (which are very rare in the US but very common over here in Europe). As you only need the right indicator to leave a roundabout, I put a little white dot next to it so it's easier to find when the wheel is in a different position. This works fine for now (until I'm used to this too).