If you do not need the reversible "twist" feature, I am not sure I would suggest it. I mean, with this size, the reality of getting a really upright seat is not really there, these super small strollers are always at least a little slanted, however the Yoyo is VERY MUCH so, more than many others. That being said, the Twist's reversibility will make the seat a little more upright, but also much narrower and limited in space as the hood is right above the seatback.
I would honestly, rather look at the non-reversible Cybex Eezy S+², definitely better, less limited seat there. Then, I would suggest the Joolz Aer which is more expensive but has a very tall backrest as well as a nicer seat angle (the leg rest is sold separately there).
And lastly, I would suggest thinking about a little larger model, not a bulky one, but a light mid-sized pushchair like, for example, the Oyster Zero (Gravity) as it is still flat and easy to use in the car and so on, but offers SO MUCH more space and comfort for your child, a large hood, basket space, and so on.