I would definitely recommend thinking it through very carefully!
We got a cockapoo puppy in January this year, for the same allergy reasons as OP
It’s true they don ‘t shed and the temperament is lovely, however the demand on time and energy is huge, with a four year old and a seven year old plus the puppy it’s been a full on 10 months and I can’t say I’m sure what the benefit is. My wife and kids love her which is great but I could take her or leave her, loads of work and little reward.
I’m possibly a little grumpy as she’s eaten the in laws lounge carpet today as well as shredding part of their garden and tensions have been running high!