Sorry to be a downer but you asked for opinion-I looked at that sewing machine & there is a good chance that it won't work very well & just frustrate her & be turned off sewing forever. And you don't want to spend your little time together trying to get a decent stitch.
I would suggest letting her use your real machine, at 10 she is capable & you will be surprised how quickly they catch on.
Just last week I showed my 7 yr old granddaughter & 11 yr old next door neighbor how to cut out & sew a simple tote bag-no lining, more like a grocery bag. They both loved making it & were so proud, after they were finished, I didn't do any of the sewing-just showed them where & when. I gave them each a new spiral notebook to put it in. (20 cents on sale at Walmart). They each used my computerized machine & loved the scissor cutting button.
Maire