Wow what a great source of information!
Trust me, the cheapest meters are not worth it. I have had a horrible experience with a cheapo and am now convinced that a decent meter is worth the investment. On the long run, when you keep on buying the strips the Mojo is the best buy.
But yes, I guess it is super important to calibrate the Mojo the right way with the code.
I was in doubt of going for the Keto Mojo or the precision extra. I found this review which compares the two www.http://foodadviceonline.com/keto-mojo-compared-to-precision-xtra/
I am pretty sure I am gonna go for the Mojo. I will post my results here as soon as its in the house!