The burning question I want to ask about every program is, "Is this a stand-alone program that does not store my data online?" I am absolutely not interested in any form of online storage, for several reasons.
First, I often go to archives and search facilities which are out of range of the internet, and it would be a huge nuisance if I can't access my database because there's no wi-fi available and it's stored somewhere in a cloud.
Second, my experience of working with online trees (GenesReunited, MyHeritage, Geni etc) is that they are so d-e-a-d .... S--L--O--W compared with working offline that they drive me nuts.
Third, I am not about to make a free gift of my years of work to some web site that is then going to use it to make money, or to bombard me with spurious 'matches' and 'offers'. (Though the 'matches' can sometimes be quite fun - my favourite was a supposed match with my 2nd great-uncle, who was born, married, brought up 10 of a family, was given a retirement award for 40 years' work and eventually died, all in Banffshire, but according to the 'match' was born in England, allegedly had a second family, with birth dates overlapping those of the genuine family, and died in Australia. I am sure his wife (who also spent her entire life in Banffshire, and survived her husband), never mind his employers, would have been astonished to learn of his double life several months' travel away on the other side of the world.)
Another question is, "can I export just *part* of my tree as a GEDCOM?" I tried Family Tree Maker some years ago, and it would only export the complete tree. There was no way to select one branch and export that only, or if there was, I couldn't find it. Quite apart from not wanting make free gifts of my work to all and sundry, I am sure that others would find it just as annoying as I do when a tree with hundreds of individuals arrives, of whom only about 50 are actually relevant. I expect FTM has fixed that by now, to be fair.