Quite good
Good but…
Second, I love having levels! Third, I love choosing a square and the flagging/clearing. No more accidental bombs. I am glad that you can continue to play after setting off a bomb.
The problem is that there are times that you have to guess. I don’t want to play a guessing game. It happens too often and there truly aren’t other clues. I hate leaving 3 stars. Sorry to the developers! There’s no 3 1/2 so I’ll say 4.