So we both think Lords of Waterdeep is totally awesome, and it's pretty much my wife's new favorite game. I'm not really sure what to say specifically about what I like, but once I get a few more plays in I can give a better assessment. I will say this, when the game was over I wanted to shuffle the lord cards and play again right away.
Played today with 4. It seems to my wife and I that playing this game with 4 makes it a completely different game almost, and still awesome. Everything scales flawlessly, it just feels a bit different. This is something that will stay in the collection for years to come.