The graphics do look a lot more crisp. They do need better anti aliasing. They will always have problems with the client as it is built in Unity. They will never be able to match the polish of Hearthstone with that engine.
Hearthstone is Unity as well but they put a ton of time and money into polishing and customizing it.
You seen the bugs in HS mobile recently?
Yes. I have playing it a little lately. Obviously not putting as much attention into it. Likely partially related to being built in Unity.
Although HS came out such a long time ago, I gotta say it looks pretty fine compared to its beta. So dunno, I'm betting over time it will outperform it by a lot.
I don’t really think it will ever match up. Blizzard has a huge team with a ridiculous amount of experience and money.
As someone with experience with Unity, what they did with Hearthstone is nothing short of amazing.