Pretty sure my Mrs has bought me a Switch for Xmas! Is it a step up from the Wii U? I'm kinda attached to that, and the back catalogue of Wii games, to be honest!
I have both and graphically i think the switch is not very different doesn't feel like a new generation but I don't mind. The switch feels that its what the Wii U should be from the start. It was really sad that the wii u didn't sell because it was a really good console in my opinion and just that it was wii backwards compatible made it even better for me and loved also the eshop it had. The wii u will stay connected on my tv amongst all the other newer consoles.
The switch is actually really good, just the fact that you can play on the go and then plug back to the dock and instantly play on the tv is priceless. It gets a lot of sales vs the wii u and so a lot of 3rd party games are made for it. You would never thing you would be playing the witcher 3, or DOOM 2016 on a portable let alone a Nintendo console!! Even Doom Eternal will get released on the switch!
Remember the switch uses a portable nvidia chip so it has to be efficient etc. Also in my mind the switch is the new PS Vita regarding the indy games. Its an indy game paradise, and being able to play on the go and on tv is a huge bonus.
That being said if you have a ps4 or xbox or even a gaming pc then probably you are better off getting graphically intensive games that are on all consoles probably on one of the other consoles unless you will be playing on the go, but the switch has some great exclusives.
I had loads of fun with
Zelda Breath of The Wild
Zelda Link's awakening
Super Mario Odyssey
Xenoblade Chronicles 2 and its expansion
Octopath Traveler
Azure striker (16bit megaman type game if you know them from the 3ds)
Hollow knight (i know this is everywhere but i got it really cheap on the switch and its handy to play on the go while the tv is occupied)
Wonderboy Dragon's trap
Monster Boy and the Cursed Kingdom (full new wonder boy game i spent 30ish hours on it brilliant game)
and i can keep typing games.
Just finished Link's awakening and boy it was really nice. Full of nostalgia since i played it on GB as well but it was worth the money i paid for it.
Lets hope you got a switch for xmas haha.