I have had zero issues with any of this.
For what it's worth:
I absolutely love my Switch. I have been playing The Elder Scrolls V: Skyrim and it is amazing. Granted... it is Skyrim and you can play that on any refrigerator or the GPS in your Honda Accord nowadays but wow... portable Skyrim rules.
I also have played through Mario + Rabbids Kingdom Battle and I absolutely loved that as well. That is a great strategy game and, even with the comic relief and weird characters, it was really tough to play through and makes you think about what you are going to do.
Mario Kart is... well... Mario Kart. It's a good game but it always is on any console.
As for the console itself there is nothing better than being able to take the Switch out of the dock and play the exact game from the exact spot you left off at and just go. I thought it would be off-putting to go from my 32" tv to the portable screen but it doesn't bother me at all.
I haven't bought Zelda as yet(still on my wants list along with Golf Story) but soon.
My $0.02? Totally worth it.