Tried and been really liking Pokémon TCGP since the holidays. The faster format and presentation are much more accessible than the mainline Pokémon card apps, being in line with the quality and polish of Magic Duels (at similar expense of a narrower roster of cards and archetypes to work with).
The only reason I don't recommend it is it also has the same aggressive gacha logic that attempts to coerce bad purchasing decisions. But if you already play, I'm 6976-2009-0143-4733 over there!