The one thing that makes me think twice about playing is the OTT seconds bonus. Already quit when i got a 15 second boost. It takes away the endorphine rush when you have to play a long game of it.
IMo the time boost should be on a five liner or filling the colours icon.
Also I think making 5 liners gain more points is a must. Plus the multi coloured fruits should be the focus on the major goal of the game. Line 3 up and bingo....