Sher, me I love being back at work too. It's been hard as hell with a massive amount of illness between the two kids and myself this winter/spring, but DH is SAHP and my god is that nice. I can see why so many men do it!
DS is in nursery 5 mornings a week and T goes M/W/F mornings. DH cleans the house, changes/washes the sheets & towels, and does general house stuff on his mornings without kids, which is great. I do most of the dinner cooking, plus the gardening on the weekends. It seems to work out that we have roughly the same amount of free time if you count my lunch breaks - there's a pool across the road from my work and I go for a swim a few times a week. I still do most of the night wakes for T, so I get more lie ins, but DH gets some too.
I know DH is keen to get back to work in the fall when we're sure DS is well settled at school. DS is socially delayed, we're in the slow process of possible ASD diagnosis - very bright though, numbers into 1000s, reading and writing since he turned 4 - and has had issues at nursery. He's improved miles in the last 6 months though, so we're hopeful that the transition to P1 won't be too bad. Thank goodness we are in Scotland, though - he's a summer birthday and would already have been in reception this year in England, almost the youngest in his year. No way would he have coped. Anyway, I'm really hoping I can drop to 4 days a week when DH returns to work, and maybe he can go part time too, so we both have time at home.