I'm really happy with 7.4 so far. Quite a few small longstanding bugs are fixed, and things seem stable and well done. They got a basic draft mode out with no gap between that and arena ending, which is a great achievement - people complaining that it isn't a polished experience can feel free to wait a month or two, or just enjoy the random craziness that a Draft Mode will always be. My experience of a draft mode type thing is limited to Hearthstone single player games, and I never really loved it, but I see good potential with Gwent. I've played two drafts, both reasonably underwhelming, and I didn't see a lot of evidence of people just redrafting endlessly until they had an unbeatable deck; I saw plenty of other badly drafted decks that it was fun to challenge.
I'm personally also pretty happy about the meta at the moment, and think things seem pretty balanced and fun (I say this as a NG player primarily). There are a lot of decks that can do well, and plenty of meme-ish combos that have a chance too. But I played very little ranked last season, so I'm sure that plays into me being happier with the state of things.
The new journey is cool, too. I'm not sure whether I'll buy it, though, as I feel like I've put enough money into Gwent for the timebeing, I have all the cards I really need now, and same with vanities too, really. I'd rather save my money for interesting other games on GOG, probably. But we'll see whether I can resist for the duration of journey - seeing all the things I could get by buying it as I go up levels will only get harder to resist. A good game in itself: can I resist the fancy journey nuggets.
I haven't played seasonal mode yet, but I have some ideas about decks that might not be terrible. Looking forward to it.