WFH is a god send to us - I work completely remotely as my office is several hours drive away - I was offered the job due to experience, but the company always knew I'd never attend the office.
I work bloody hard, I put in the extra hours when my toddlers are in bed too, so when I need to take an hour or three in the day, I do. It's flexi-working here and I exceed all targets so they're pretty happy with me, and I am happy with the flexibility. I do a compressed week as standard.
School holidays means that my husband is home (teacher) but I book 2 days leave per week, and work from home the other 2 meaning my children have us all summer. It's amazing.
When the children are poorly, I'm at home anyway so it's no drama.
My old company were so happy inflexible- annual leave would not have been able to be taken weekly during holidays, WFH was not permitted, and if the children were unwell, I would be forced to take unpaid leave. Certainly left a sour taste.
However, I have seen a couple of colleagues take the piss and this does not go unnoticed!
WFH isn't for everyone everybody but it definitely is for me :D