8 of 9 people found the following review helpful
2.0 out of 5 stars
Keys, Keys, Keys, 4 April 2010
Initially we liked the product Hewlett Packard HP20B Financial Calculator
. It looked good, seemed to have all the functions you would need and had the x,y,z ? factor.
Once we started to use it the things started to change.
Quite surprisingly it was not very stable on the table. You can notice that it has got the rubber at the bottom but it is not located at the very corners of the device. This means that if you pressed the "plus" key and you pushed it more outwards the calculator could flip (not completely but it would lift the other corner of the device). I know it sounds strange and I was surprised as well. Bad design compromising stability!?
BUT the key reason we had to return the device was because of its KEYS/BUTTONS.
The keys do not have a 100% response to whether you have pressed it or not. They have a hard (almost very hard) response in terms of the pressure you have to apply to press it. The error rate was about 10% and I was using only the 0-9 keys. (I never managed to get to try the other keys/functions) Pressing them in sequence I almost always got one missing on the screen. I have looked at this in more details with my further testing and noticed that if you press the corner of the button (or do not centre your finger with 100% accuracy) you will receive the response from the key. But the device will not display the digit. This way you have to check almost every entry you make. Or even if you get the response you have to "push" further for it to get acknowledged. (we are no longer using typewriters here where you have to really apply pressure)
Cos lets be honest here you will buy this to improve your efficiency with financial calculation but if the device is not able to be accurate with what you are typing it is NO good for you. You will not have time to check if the THING has got all the digits you have typed in? THERE IS NO ROOM TO WASTE TIME LIKE THIS.
BUT maybe your one will be better.
However it is a no no buy for me if the manufacturer can not get "right" something like this. And I have used few calculators in my life and none of them was BY FAR AS EXPENSIVE as this one. HP we are disappointed.