I had it in Switzerland several times, and in Berlin we had that little raclette grill for the table.
Very tasty, and yes - kinda fun to have all the different combos on the table and let people make their own variations.
That said, even in Europe it wasn’t cheap - you did this for special occasions - and there was quite a bit of pre-preparation involved - cutting everything in small pieces, preparing them, finding room on the table for all of the little bowls and sauces etc. It was also somewhat time consuming, and if you were really hungry you were out of luck as it took awhile for each (rather tiny) portion to prepare.
However, if you want to have a table with exactly four people sitting around and chatting and taking your time to eat, it is a perfect way to kill an evening and everyone can pretty much design/make/eat exactly what they like and want.