Buttons are soft compared to Citizen. Otherwise it’s good. I wanted the same size as my old calculator and it is. The’check’ buttons allow you to check in both directions and there is an’auto replay’ button too. Will have to see if this lasts for a long time or not.
How to use the’Tax+/-’ and’Rate’ buttons: Type in the tax rate that you want, then hit the rate button. Then press Tax+ and you should see the tax% sign appear above the number you punched in which will store that rate. For eg: Supposed you have stored "10"(default is 5). Write 100 and press Tax+. That will give you a result of "110" which is 10% added. The Tax- is more useful. You write 110 and press Tax-. It will give you 100. That means the number you have entered is with tax included and you want to find the pre-tax figure.