It is useless to refer to past experiences with hp 41C,CV and CX: the SY41CL is completely another world! Not only it has preinstalled all the modules of the previous HP, but many others and a great amount of memory, that give it a computing power in all areas, never seen before on such a small device, thanks to the use of FPGAs! You can assemble it yourself but I don't recommend you to give up the top-class service of The Calculator Store! I take my 41CL with me even when I go for a walk: you never know, such a computing power is useful in many different cases, even just as a notebook!!!
Giving 41CL less than 5 stars is... Don't deserve it!

Great calculator, purchased with excellent service from Jose.

I always loved my HP-41CV. Despite all my modern calculators it remains the most frequently used one. The differences in performance between my vintage HP-41CV an my new acquired HP-41CL is incredible!