I agree with you. It's great to finally be able to play an adventure game in Sierra's famous style once more. A lot of sweat and tears were poured into this project, but it's finally at the final lap. After all these years, we finally get to play as Graham once more.
I think the only thing I would even remotely "complain" about would be the pathing/walking. Sometimes, Graham simply wouldn't walk AROUND the object if something was in his way...! He'd just stop AT the object, rather than walk around it.
Graham says, "I see where you want me to go, Tawmis, but I think I will stop at the bottom of the stair case monorail thing, rather than go up the stairs. It is, after all, quite a few stairs, and I am an old man!"

Oh! And the only other thing is the dern Lighthouse seen off to the side by where the tickets for the ferry are normally sold. I must have tried about 30 times to try to get to that lighthouse (because it was so detailed) that I thought I had to get there. But that's just me being an idiot. Not the game's fault.
