I have used Alka-Seltzer Plus Night Cold & Flu once way back, may be in 2012. I got it just because it was on sale, otherwise it is little pricey for the job it does. I mean it does a good job but then we have other brands in the market which does as good of a job for a lower price. It is a good formula and does a great job. It lets you sleep through the night when you are either in pain or have cold or flu. You feel much better and refreshed and with less congested nose if you take Alka-Seltzer Plus Night Cold & Flu a night before. The formula is perfect and lasts for twenty four hours, you feel good throughout the day and then can have it again before going to bed. I have not tried this product for cough or Chest congestion so would not like to review for that, but I guess it would work well for that as well. Will I buy it again? Well depends, if it is on sale and I need it then yes, else NO, I wont. Chest Congestion Relief Do not know! Cough Suppression Do not know!