I haven't replaced my broken espresso machine yet.
I have a JX Pro. I do 3 types of grind and coffee sizes
1) 24-28 g at 1.8 turns (just above the top of the espresso grind). It takes me 37-45 secs.
2) 18g, 1.6, ~30s
3) 12-13g, 1.6, <20s
4) 18g, 3.0, <20s
5) I have done 18-20g at 1.3-1.4 in <36s.
I make 6-7 coffees a day and I actually like hand grinding. I plan to hand grind when I purchase my espresso machine and see how I get on.
Electric grinder is a great convenience especially if you are going to make a lot of espressos and/or when friends/family come over. I am sure one of the friend's/family members would not mind giving a helping hand, if required.
It's a choice between convenience, cost and if one would enjoy hand grinding.