This is one of the most useful items on my desk.  I use it on  a daily basis and it's much more convenient that my past calculators.  The computer access on the calculator is the most helpful tool I've ever used.  I also want to add that I have had plenty of calculators to measure up,, but none of them have compared!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! — !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! —… read full review »