For the most part, I like the ShuffleIt interface far more than Goko's. I think I played one game on Making Fun before determining it wasn't actually an improvement over Goko. There are a couple of things that bother me beyond the bugs (like naming cards) that still need to be squashed.
First, the familiar cards concept, while an interesting idea, needs to be brought to the attention of people. I am getting absolutely sick of playing every game with the same base cards, especially Chapel. Chapel just stops being interesting when your last 6 games have also had it. I personally marked everything as familiar because I don't want to be gently led into all the cards that have been released since Hinterlands (the last set on Isotropic). If people aren't actively marking cards as familiar, the feature is very very annoying to people like me. I think maybe it's better on Good Match than Quick Match, but if that's the case it's not very clear, and I'm worried since I didn't play on Goko/MF that Good Match will be matching me with mainly newbs and I won't get to see decent players actually using all the new cards.
Second, on a more minor note, I don't like the Ruins being grouped in with the kingdom cards. It just doesn't feel right. It feels like it should be next to the curse pile. Maybe that's not an option if you want to keep it as the same size as the other kingdom cards given that it's a mixed pile and theoretically people might want to buy Ruined Market, but it just doesn't look right.
Of course, there's a lot more that needs to be done that I alluded to in my couple of posts on the ShuffleIt forums. There needs to be a ranking system. The game needs to be completely playable, including being able to name any card you want. You need to be able to see your journey token. The trash needs to be easier to access. The selection of a card from your discard (like with Scavenger) needs to be made easier; it's borderline impossible to tell which card is which since they aren't sorted. There's other things that you already know about from others (multiple Traveller exchanges, poor tavern mat access). I only subscribed for a month to start since I'm not really sure I want to invest long-term (especially given my job that's going to ramp up the next few months) when I don't know what the release schedule is for all the features that will make the game much more enjoyable overall. As it stands, I think took probably 3 weeks to many to start, because I'm simply frustrated now that the novelty has worn off and there's other things I can do while I wait for ratings, better matchmaking and user familiarities, and functional fixes.