Texas Instruments 84PL2VSC/CBX/1L TI84+ Silver Viewscreen Calculator
I bought the Viewscreen edition solely because amazon was having a sale on it so it was cheaper than the regular 84+ silver. I don't have any problems with it, even after writing some rather complex programs. However, I do not like the product itself. I find the interface unintuitive, and so many of the most-used functions are buried in menus. The LCD is also terrible quality. It takes forever to refresh so there is a noticeable delay between changes. That intermediate time results in a grayish screen that can really bug you. Also, the software included is not compatible with my Intel Imac. Luckily, I use parallels and a virtual machine and the windows version did the trick. Hope this is helpful.