The calculator is well made and looks good. The large keys, it can be optimally used as a desktop computer. The pressure point of the keys is ideal and little prone to error. The 12-digit display is very handy if you want to count on large numbers or very precise values. If necessary, you can also activate the automatic rounds at different decimals.
The combination of solar and battery is well done. Even in low light, you can work optimally.
Only the guide could be made a little more extensive. But really is not necessary.
Conclusion: With the exception of the manual is a very good desktop computer for the office.