Why on earth did HP swap around the primary function keys?

[Ron Ross]

Well, you could infer that Hp FINALLY got it right with the Hp Prime!!! Except, the Hp Prime is actually an algebraic calculator with an RPN option! So the enter key should actually be located in the same location as the Hp 50G for its intended audience (90% of Hp Prime users probably use the Prime in algebraic mode and having the enter/equal key in the center is kind of counter intuitive).
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However, for general RPN number crunching, it works great. It is just too large for a pocket calculator and is designed more for the student that the professional (My opinion only).
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But it is something to consider as it has EVERYTHING and is a decent RPN calculator (it IS NOT comparable to an Hp 50G for high end use in RPN).