Definitely recommend these for quick-knitted gifts! I really felt it wanted a bit more to them though, so here are my mods:
-I added a 2 cable repeats before the thumb gusset to make the wrist longer.
-I also added another 2 cable repeats after the thumb. This made them slightly longer in the wrist section and the finger section.
-Did away with the picot bind off, I it was too frilly for my taste, and I think Jennie would agree! I did a standard bind off on these.
As a side note, I really liked this thumb method. I think it’s better than the usual method in the mittens I’ve made so far. Did my usual darning to prevent the holey gaps that plague my hand made mittens and gloves.