I have been both and I have to say, once stbxh moved out I felt like a huge weight had been lifted. Yes, I have to put the bins out and sort out the bills and money isn't as plentiful as it was, but the difference is that now I get to decide how its spent , I get to choose which car I drive, what I eat, whether I'm visiting family this weekend, whether my kids would love a holiday, whether to sit down and watch TV or tidy the kitchen.
My X stayed away for 2-3 weeks at a time for about a year and then often stayed away for 2-3 days so I have seen it from many different perspectives.
Yes it is hard coping on your own, but knowing that H would be home at the weekend didn't make it any easier for me, it meant I had to frantically clean and tidy so that he wouldn't come home and complain about what I hadn't done, it meant that I had to plan meals that he would approve of and that the children had to be on their best behaviour so as not to stress him out.
He spent the whole time he was home hiding in his office 'catching up on paperwork' and we never went anywhere because he was just happy to be at home (even though I'd been there solidly for weeks as I didn't have spare money, even for petrol to go anywhere else).
I often said I felt like a single parent but without the perks of independence, dating new men and the occasional night off when the kids stay with their dad.
Now as a single mum I have all that, a great boyfriend, some time to myself, financial autonomy and someone else who is equally responsible for looking after my DCs, which allowed me a kid-free weeks holiday with my BF earlier in the year (as well as a family holiday with them all).
I know which I'd rather be!