Very F2P friendly. I've only played for just 2 weeks without paying and for the first week I've reached the rank of T-Rex. I paid for one of the packs (about 3 USD) and I've been getting the highest rank in competitive matches so far. The Discord team is friendly, and sometimes you will get emails from the CUE team giving you free items (gems or packs). Participating in the competitive matches is also rewarded with free gems and packs every week. My only gripe so far is that there are some imbalance decks that I have not seen any weaknesses for, such as the full astronaut deck and the full carnivorous deck. The gameplay is quite straightforward and there is not much you can do to "counter" these decks. Since there are only 18 cards per deck, adding a tech card to counter those decks mean you are less effective to fight standard decks. Aside from that, overall good game.