I'm late to this party, but...
I cannot overstate how much I enjoy these new ex cards. Being a remake of the original ex mechanic, on top of visually resembling EX cards (my favorite Ultra Rares in the TCG's history) makes for something that I didn't think was possible, but it's exactly what I've been wanting.
I've wanted a card body back on regular Ultra Rares, as I think it helps them still resemble a Pokemon card but with "more" to it. There's a place for Full Arts (and other cards similar, such as Legends in the HGSS era), but I much prefer this style to GX's and V's. Not to mention the new steps it takes to add some flair- I love that the card body is slightly transparent, showing off a bit of the Pokemon's body and scenery in the background, as well as the holofoil being extremely interesting. Can't wait to see how these look in real life, along with however Full Arts are to look coming up.
Point is, I'm just very excited and am looking forward to seeing how this next era of the TCG fares. Isn't it crazy that it's been over a decade now since EX cards came out? I'm hoping this new generation captures that same magic I miss oh-so much.