Well I've already posted my feedback about this over on Indiegamer but I'll add my support here too. Looks great, very polished, well done and good luck with it.
btw, regarding that other thread I'm not convinced just having the sound effects quieter is the solution, I think the issue may be with the effects chosen...Also that other poster who said the game would've cleaned up a couple of years ago but is not so sure now may have a point. Basically do you have different level layouts? At the moment it's got that "single board" look that worked for Bejwelled and other games back in the day, but now players like to see level shape variations as they progress across the map (which I note you do have, along with different backgrounds + I different assume music etc).
btw, regarding that other thread I'm not convinced just having the sound effects quieter is the solution, I think the issue may be with the effects chosen...Also that other poster who said the game would've cleaned up a couple of years ago but is not so sure now may have a point. Basically do you have different level layouts? At the moment it's got that "single board" look that worked for Bejwelled and other games back in the day, but now players like to see level shape variations as they progress across the map (which I note you do have, along with different backgrounds + I different assume music etc).