Hi OP, I have had two sections, first was an emergency, second was planned.
Your OH should be able to come into theatre, hold your hand etc, I think they might be able to cut the cord, but my DH was way too squeamish!
I think my DH helped most with lifting baby, and nappy changes in the early days. Once home after the EMCS I could comfortably feed baby in bed but couldn't stand up holding him to pop him in the Moses basket so DH did the honours, in hindsight a next to me type crib might be easier?
Also DH helped me shower at the hospital after my first section which was really handy - bending to get shampoo etc this was okay as baby was in NICU but he had to stay with baby second time round in the ward as no cots were allowed into the showers, by a lovely HCP helped me.
Also DH was brilliant generally waiting on me, lots of water and food as BF. Tidying up etc etc.
Recovery is really not too bad and my planned section recovery was a walk in the park compared to the emergency!
On another note I do recommend lactulose or similar 
Sorry this is very rambly but hope it helps, feel free to PM me if any questions!
Best of luck! X