10bII+ Financial Calculator, 12-Digit LCD

Bought this calculator as it was recommended for a class. Ended up not using the calculator for first month. Went to use it to simple TVM problem and the number of payments per year is stuck at 12. Already threw the receipt away so I cannot return it. Make sure you save your receipt. Spent time looking through support questions reading manual, but didnt see this issue addressed anywhere. Now I cannot trust the calculations because I do not know what else is possibly wrong with the calculator.
Poor quality.
I had heard great things about this calculator and I am sure another might do better, but for the price I shouldnt have to be going back and forth to the store to find one that works.

I graduated with a BS of Mechanical Engineering in the mid-eighties. I extensively used many classic HP calculators like the HP-41 in its V and X versions. I currently own an HP-15C, an HP-17BII, HP-27S and other middle liners pioneers, including an HP-21S and an HP-10B in its original pioneer iteration. Said that, just to warrant I know previous HP calculator quality fairly well. This new HP-10BII+ is light, its display is crystal clear and has great contrast, the keyboard has a firm click feel and all the functions are a couple of keys away. A calculator is all about human-machine interface. This calculator is well rounded as a device with simple and straight to the point interfacing. It allows quick execution of its functions that are way beyond any other calculator of its class/price. Personally, I prefer to have only basic functionality in a calculator, anything more complex goes to either, Mathematica, Excel, SAS or R in a computer. The function set in the HP-10BII+ is a good example of an almost ideal set before to need a computer. What else could be asked for in a calculator of this price? As an engineer working now in management, that requires occasional basic arithmetic, some business estimation to crack numbers when analyzing financial statement in a board room or verifying a formula results in excel and the likes, I cannot think in a better match for a calculator to have handy. Besides it looks classy without being outdated. Once, a recent graduated engineer, when saw my HP-15C in my desk told me, Ah! My grandfather used to have one calculator like that, are you really that old? I am pretty sure I will not need to explain my age to anybody using this nice updated classy calculator.

This calculator was completely inadequate and a definite step back from the quality of the old HP calculators of the 1980s and 1990s -- two of which I still have, but which are getting long in the tooth. I couldn't enter numbers accurately, much less make calculations reliably on the newer model. This 10bII + was a huge disappointment, and it never worked, not even when new.

I bought this calculator for my Finance class and work, it is awesome, easy to use, and user friendly.