I thought it might be useful to have a thread where product reviews can be made and read, to recommend to members or warn members against.
Someone recently posted that he can't find decent coffee. I highly recommend Doi Tung. It comes in various "strengths" and is a delicious coffee.
For instant coffee, local brand Khao Shong is very good value. A quarter of the price of Nescafe or Maccona, but very tasty.
I also recommend Chalaa brand fruit juices. It's a blue carton and is very much better than Malee or UFC that are pricier. The mixed berry is nice, and at 42 baht a litre, is well worth it. I also like the pommelo and the tangerine juices.
Comments on my above recommendations welcome.